Las Vegas -- A highway shootout in Las Vegas between the Hells Angels and the Vagos motorcycle gangs left seven people injured on Sunday.

The shooting occurred just before noon local time on the US-95 Freeway at College Drive in Henderson, which about 17 miles from the Las Vegas Strip.

Henderson police made a statement on Monday announcing the arrests of three suspects related to the incident. They are suspected of attempted murder with a deadly weapon and other crimes.

The two biker gangs were participating in the Memorial Day weekend “Flags Over Dam” ride in Boulder City near Hoover Dam before the incident broke out near the Veterans Memorial Cemetery.

“While setting up to start the ride, five Hells Angels prospect members were seen riding around ... and drove through the cemetery and began to cause problems,” police wrote in a report.

According to the Las Vegas Review-Journal, members of the Hells Angels opened fire on the Vagos about 15-20 minutes later on US-95. Officers said that multiple subjects sustained gunshot wounds and that seven people injured were hospitalized. It is unclear how many had sustained gunshot wounds.

The suspects have been identified as Richard Devries, 66; Stephen Alo, 46, and Russell Smith, 26, police confirmed. The exact cause of the shooting is still being investigated by local police.

“As this is an open investigation, no further details will be released at this time," the statement said.