MINNEAPOLIS — A Minnesota man who faces terrorism-related charges once boasted that he was capable of building rockets that could threaten planes landing at Minneapolis-St. Paul International Airport, and also once worked at the airport as a baggage handler, an FBI agent testified Tuesday.

FBI Special Agent Daniel Higgins spoke at a hearing for Abdirizak Mohamed Warsame, 20, of Eagan. Warsame was the 10th young man from Minnesota’s Somali community to be charged since April with terrorism-related counts accusing them of plotting to travel to Syria to join the Islamic State group. He was arrested and charged Dec. 9 with one count of conspiracy to provide material support to a foreign terrorist organization and one count of providing such support.

U.S. Magistrate Judge Becky Thorson ruled there was probable cause to support the charges, and that Warsame should not be released because he’s a flight risk and danger to the community. The case now goes to a grand jury where prosecutors will seek an indictment so they can proceed to trial.

Three of the other defendants have pleaded guilty, while five are scheduled to go on trial in May. The FBI says one is in Syria.

Higgins’ testimony added details that weren’t in the criminal complaint against Warsame, which included an affidavit from another FBI agent, Vadym Vinetsky, who wrote that Warsame was appointed “emir,” or leader of the local group, by Guled Ali Omar, who was planning to leave for Syria but was thwarted and is now among those awaiting trial.

Assistant U.S. Attorney Andrew Winter told the court Warsame’s time as emir was brief, but it showed his leadership role in the alleged conspiracy, helping one defendant with money for an expedited passport and helping another alleged co-conspirator make contact with Islamic State facilitators in Turkey.