SAN ANTONIO (AP) — Officials at Fort Sam Houston say they've taken into custody the driver of a suspicious vehicle that sparked a lockdown at the San Antonio Army base.

Alex Delgado, spokesman for the 502nd Air Base Wing, says in a statement that the lockdown was lifted Sunday night after officials decided it was safe to return to normal operations. It wasn't clear how long the person taken into custody would be held or if charges would be filed. Nobody else was in the vehicle.

No other information was released.

According to the city of San Antonio's website, the base was established in 1910 — the ninth-oldest Army installation in the country. Fort Sam Houston now encompasses 3,000 acres and is home of military medicine and part of Joint Base San Antonio.