Ten people arrested in the shooting of a police officer at an Immigration and Customs Enforcement detention center in Texas were charged on Monday with attempted murder.

The shooting occurred on the Fourth of July after people set off fireworks at Prairieland Detention Center in Alvarado, Texas, and vandalized vehicles parked at the center, which is about 28 miles south of Fort Worth. The episode came as nationwide demonstrations, some festive, took place against the Trump administration’s immigration enforcement and other policies.

The 10 people were each charged with three counts of attempted murder of a federal officer, according to a criminal complaint filed in the U.S. District Court for the Northern District of Texas. They also each faced three counts of discharging a firearm in relation to a crime of violence.

The officer, who was wounded in the neck, was discharged from a hospital, the Johnson County Sheriff’s Office said on Sunday. The officer was not identified.

The 10 people identified in the complaint are Cameron Arnold, Savanna Batten, Nathan Baumann, Zachary Evetts, Joy Gibson, Bradford Morris, Maricela Rueda, Seth Sikes, Elizabeth Soto and Ines Soto. Nine of the defendants are from the Dallas-Fort Worth area, and one is from College Station, Texas.

An 11th person, Daniel Rolando Sanchez, was expected to be charged separately in the case. At a news conference on Monday night, officials said a person tied to the case had been charged with obstruction of justice and conspiracy for attempting to conceal and destroy evidence, but it was not clear if that person was Mr. Sanchez.