WESTWOOD (CBSLA.com) — A 66-year-old patient was being questioned Monday after he found a hand grenade in the emergency room of the Veteran’s Affair Hospital in Westwood.

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More than 200 people were evacuated from the emergency room around 7:30 a.m. after a grenade was found inside a restroom at the building, located at 11301 Wilshire Boulevard, the Los Angeles Police Department said.

“The gentleman found the grenade. It had the thumb break on it. It had a copper wire through the pinhole, so it looked like it was active,” Chief Ed Casey of the VA Police Department told KNX 1070’s Pete Demetriou.

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The Los Angeles Police Department and the LASD’s Arson and Explosives Detail later determined the grenade was not active with the use of an X-ray machine.

Officials checked out the car the man was driving and took him into custody where he admitted to investigators that he did bring the grenade onto the hospital’s campus.

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No injuries were reported. The emergency room was reopened to the public around 9:15 a.m.