LONG BEACH (CBSLA) – Army training drills continued Wednesday in the Long Beach area as loud explosions rang out and low-flying helicopters landed throughout the night.

While details of of the military drills are undisclosed, soldiers were seen entering a building where they ran through different scenarios.

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The Los Angeles Police Department was in the area to provide security.

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LAPD Detective Meghan Aguilar explained why the Army was training in L.A.

“L.A. is a great venue for training. You have the water the ports, you have a very urban setting, you have a dense population and so when you look at compiling training and more realistic training – whether it’s in law force or the military – you want to make it as real as possible,” she said.

Wednesday marked the third day of military drills, which is expected to run until Saturday.

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During that time, the military wants the public to know sounds of aircraft and weapon simulation may be heard.