Federal immigration authorities have detained the wife and five children of Mohamed Sabry Soliman, the suspect behind a recent antisemitic attack in Boulder, Colorado, according to a report by the New York Post.

Soliman, a 45-year-old Egyptian national, is accused of injuring 12 people using a homemade flamethrower and Molotov cocktails. According to the officials, he had been living in the US without legal status since March 28, when his visa expired.

Following his arrest on Sunday, agents from Immigration and Customs Enforcement (ICE) and Homeland Security Investigations (HSI) took Soliman’s family into custody, a Department of Homeland Security official told the Post.