ROSEVILLE -- It was 4:45 a.m. Wednesday, when Roseville police received multiple calls reporting shots fired in the area of Galleria Boulevard and Berry Street.
"When they got to the area, and started doing a search, they did hear and see what they believed were muzzle flashes from rifles in the area. Also while our officers were in the area, they saw two subjects dive into the bushes," Roseville police officer Jerry Wernli said.
Because of what those officers witnessed, they called in reinforcements.
"Calling in the SWAT team, bringing in air support. Trying to find these guys," said Rob Baquera of Roseville PD.
Officers took every precaution to protect people, shutting down westbound lanes of I-80, causing a morning commute traffic nightmare, as cars were backed up for miles.
As officers continued to search for the suspects, they found a discarded weapon near the creek.
"That rifle is an automatic rifle, its an AR-15," Baquera said.
Crime scene techs also found shell casings and magazines. And cyclists biking along the trail there later came across multiple shell casings.
Next to the bike trail is Maya' Archers bow and arrow range.
"It's just for archery only," said range master Brad Hastings. "No rifles, pistols not even any cross bows either."
Police say it's not only illegal to fire a weapon within city limits, it's also illegal to hunt.
Investigators aren't sure what the suspects were targeting.
"We have no reason to believe that there's any connection with shots being fired at vehicles on the freeway," Baquera added.