A U.S. citizen on the FBI’s Most Wanted Terrorist List has been charged with additional crimes involving ties to Somalia’s al-Shabaab rebel group, according to a federal indictment unsealed Monday.

Jehad Serwan Mostafa, 37, a former San Diego resident, was indicted on similar charges in 2009.

Without providing specifics, the new counts accuse him of having key roles in al-Shabaab activities and providing material support from 2008 to 2017.

The FBI did say it learned this year that he is a leader in al-Shabaab’s “explosives department.”

Read more: AP