LOS ANGELES (CBS) — Authorities say they’ve arrested a man on suspicion of making more than 18,000 prank 911 calls over six months.

Maurice Cruz, 43, of East Los Angeles, was taken into custody at 2:35 a.m., CHP’s Sgt. Denise Joslin said.

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“(Cruz) started harassing the Los Angeles Communications Center 911 emergency lines via cellular phone,” Joslin said. “Mr. Cruz made the calls utilizing a number of non-initialized cell phone handsets, which made tracing his calls difficult.”

Authorities did not give any details on the calls or a motive. Joslin said that Cruz harassed and annoyed emergency dispatchers by calling more than 18,000 times between Aug. 27 and Friday.

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Investigators with the CHP and the U.S. Secret Service tracked Cruz to a home in East Los Angeles and took him into custody.

Cruz was booked on suspicion of misusing 911 emergency lines to annoy or harass. He was released after posting $5,000 bail Friday.

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