CHICO, Calif. -

Chico Police were flooded with 911 calls Saturday night from people who heard and felt loud explosions.

The reports came in just after 10:30 p.m. and the sound or sounds were heard all over Chico.

A few hours later, around 2:30 a.m. Sunday, the Butte County Bomb Squad found explosive materials at an apartment complex in the 1200 block of West 5th Street.

They disposed of the explosive material  but did not confirm exactly what the explosive material was or if it was the source of the explosion heard late Saturday.