MIAMI — A mechanic accused of sabotaging an American Airlines jetliner had expressed a desire for Allah to hurt non-Muslims, stored violent Islamic State videos on his cellphone and has a brother in Iraq possibly involved with the group, according to new evidence unveiled Wednesday.

U.S. Magistrate Judge Chris McAliley cited those revelations from prosecutors in ordering pretrial detention for Abdul-Majeed Marouf Ahmed Alani at the hearing in Miami federal court. Alani is accused of disabling a critical navigation component on the Boeing 737, which had 150 passengers and crew aboard.

Other evidence revealed Wednesday including that Alani, 60, recently sent a $700 wire transfer to someone in Iraq — where he has extended family — and that he traveled to Iraq in March but did not disclose that to authorities after his arrest.

Prosecutors also presented evidence that Alani has a brother in Iraq who may be involved with the Islamic State extremist group as well as statements Alani made about wishing Allah would use “divine powers” to harm non-Muslims. Alani had videos on his cellphone depicting Islamic State mass murders he shared with others, according to prosecutors.

“You may be very sympathetic to terrorists,” Judge McAliley told Alani at the hearing. “That’s very disconcerting.”

Alani is a naturalized U.S. citizen from Iraq who has worked as an airline mechanic for 30 years, with no prior criminal record. He’s not charged with a terror-related crime, but Assistant U.S. Attorney Maria Medetis said the potential links to the Islamic State give rise to the possibility that his actions had a darker purpose beyond what he insisted was a labor issue.

Alani is charged with sabotaging the airliner at Miami International Airport in July because, he told authorities, ongoing labor talks were jeopardizing his chances at earning overtime. The aircraft did not take off and no one was injured. And Alani did work overtime to fix the plane.