The head of the 11th Air Defense Artillery Brigade has been suspended following an impaired driving incident on Friday, an Army spokesman confirmed to Army Times.

Col. Shana Peck was suspended when her parent command learned of the arrest on Monday, said Lt. Col. Patrick Husted, a 32nd Army Air and Missile Defense Command spokesman.

“Due to the nature of the incident, and the fact that it remains under investigation, I can’t comment any further on the situation,” he said on Thursday. “I will, however, tell you that the readiness of the brigade remains intact and that they are more than prepared to successfully complete their assigned mission.”

The El Paso Times, citing Otero County court documents, reported that Peck was arrested at about 7:40 p.m. on Aug. 11 after she allegedly drove off the road.

She was booked into the Otero County Detention Center on suspicion of driving while under the influence, the newspaper reported.

Peck pleaded not guilty at an arraignment hearing Monday, court records show, according to the El Paso Times. 

Lt. Col. Bruce Bredlow, the brigade’s deputy commander has taken over as acting commander, Husted added.

Peck has commanded the 11th ADA Brigade, at Fort Bliss, Texas, since June 2016. She is the first woman to lead the command and only the second to command an air defense artillery brigade, the El Paso Times reported last year.

Her arrest was first reported Wednesday by U.S. Army W.T.F.! Moments.