One police officer was wounded after at least two people shot at officers outside an immigration detention center in Texas, according to a criminal complaint in federal court.

The FBI is offering a reward of up to $25,000 and Texas Gov. Greg Abbott’s office is offering an award of up to $10,000 for information leading to the arrest of Benjamin Hanil Song. Song is accused of taking part in a July 4 attack on an ICE detention center, during which a police officer was shot and wounded.

Two of 11 people arrested in connection with the shooting of an Alvarado police officer at Prairieland Detention Center July 4 were previously arrested at protests.