MIAMI (AP) — A teenager charged with sexually assaulting and killing his 18-year-old stepsister on a Carnival Cruise ship surrendered Monday after a federal judge reversed his decision on pretrial release now that the teen is charged as an adult.

The U.S. Attorney’s Office in Miami confirmed that Timothy Hudson is in custody. U.S. Magistrate Judge Edwin Torres filed the order to revoke Hudson’s pretrial release last Wednesday, but the order was sealed until Monday afternoon. The order stated that Hudson should surrender to U.S. Marshals at the federal courthouse in Tampa Monday morning.

The judge had ruled in February that the 16-year-old could live with an uncle and be electronically monitored. But after the case was transferred to adult court in April, prosecutors wanted Hudson in custody.

The judge ultimately agreed that the issue of Hudson’s pretrial detention should be treated as if he was an adult, though Hudson will be held in an approved juvenile facility.

“The Government has established, by clear and convincing evidence, that no condition or combination of conditions of release will reasonably assure the safety of the community going forward,” Torres wrote in his order.

Hudson has pleaded not guilty to charges of first-degree murder and aggravated sexual abuse in the death of Anna Kepner. His federal public defenders have declined to comment on the charges.

Minors are rarely prosecuted in federal court, and this case landed there because Kepner apparently died in international waters, outside any state’s jurisdiction.

Kepner had been traveling on the Carnival Horizon ship in November with her family, including Hudson. Before the ship was scheduled to return to Florida, her body was found concealed under a bed in a room she was sharing with Hudson and another teen, a criminal complaint said.

The cause of Kepner’s Nov. 6 death was determined to be mechanical asphyxia, which is when an object or physical force stops someone from breathing.

Attorneys for the prosecution and the defense made arguments for and against Hudson being jailed until his trial during a May 27 hearing, but Torres said he wanted to speak with the Marshals Service about the logistics of detaining Hudson in central Florida, closer to his family, rather than South Florida, where the trial is taking place. Hudson walked out of the courthouse after that hearing.

Assistant U.S. Attorney Alejandra Lopez argued at the hearing that the crimes Hudson is accused of are so serious that the court shouldn’t risk another violent attack. An autopsy determined that Kepner had been pinned down and forcibly raped, the prosecutors said. She also noted that it likely took 3-5 minutes for Hudson to allegedly strangle Kepner until she was dead.

The prosecutor also argued that Hudson was a much greater flight risk because he now faces a possible life sentence if convicted of the adult charges. As a juvenile, he would have been released at age 21, regardless of what counts he was found delinquent on.

Evan Kuhl, with the Federal Public Defender’s office, told the judge during the hearing that Hudson has abided by the conditions of his release for months without issue.

Kepner’s father, Christopher Kepner, previously released a statement, saying the family was placing “trust in the justice system to pursue the truth with care and integrity.”

“The situation is deeply painful and complex for the entire family,” Kepner said.

Anna Kepner was a high school cheerleader at Temple Christian School in Titusville, Florida, about 40 miles (65 kilometers) east of Orlando. At her memorial service in November, family members encouraged people to wear bright colors instead of the traditional black “in honor of Anna’s bright and beautiful soul.”

NEW YORK (AP) — High oil and gasoline prices and energy supply problems won’t be solved overnight, despite an agreement to end the Iran war and open the Strait of Hormuz announced Sunday.

It will likely take months before energy companies can resume operations to the point of meeting the world’s demand, according to energy experts. The slow pace of the process of shipping and refining crude oil, and doubts about the security of traveling through the strait mean the effect won’t be seen immediately, they said.

Ships loaded with crude oil have been stranded in the Persian Gulf for more than three months, unable to safely travel through the waterway, through which about a fifth of the world’s oil and gasoline supplies typically traveled before the war began.

“It’s going to take time for people to feel comfortable and for insurance to be in place … particularly to get people on the ground to restart some of these assets,” said Daniel Evans, global head of fuels and refining research at S&P Global Energy.

Still, oil prices slipped early Monday after the deal was announced.

Brent crude, the international standard, was down $3.45 at $83.89 per barrel. U.S. benchmark crude oil lost $4.03 to $80.85 per barrel.

Those prices are still well above the roughly $70 per barrel where oil was trading before the war started.

As the higher prices unwind, ships that have been stranded will have to exit the strait, and then new tankers will have to come in to be loaded, Evans said.

“To bring a ship in, you need to be confident that you’ve got a big enough window of safety to bring it in, load it and move it out,” he added.

Oil tankers also move slowly, he explained. It takes months to travel from the strait to distant countries, deliver the crude oil to a refinery for processing and then arrive at its final destination.

In addition, some producers in the Middle East paused extracting oil from the ground, known as a shut-in, when they ran out of storage space. Restarting those operations can be a slow process.

Countries such as Saudi Arabia and United Arab Emirates, where there are alternate pipelines or routes besides the Strait of Hormuz to deliver oil, may be among the quickest to resume production, said Alan Gelder, senior vice president of refining, chemicals and oil markets at Wood Mackenzie, an analytics firm.

“But places like Iraq could be much more challenged because they’ve had a much bigger shut-in, their fields are more difficult … it may well take about a year before they get back,” he said.

Investment in the energy system, which can take years to see the results, ground to a halt after the strait’s closure, Gelder said. So it will take time for this capital to restart.

Countries that shut in oil production won’t want to restart until they know there is a stable, durable strait, and that a ceasefire will last more than 30 or 60 days, said Daniel Sternoff, senior fellow at the Center on Global Energy Policy at Columbia University.

“We don’t know what open means or what the speed of evacuation of trapped material is going to be,” he said.