Petaluma police arrested five drivers during checkpoints Friday night — three for driving without valid licenses and two for driving on suspended licenses.

No drivers were found to be driving under the influence of alcohol or drugs.

Police conducted two DUI/drivers license checkpoints Friday night, one on Sonoma Mountain Parkway and the second on Petaluma Boulevard North at Gossage Avenue.

A total of 987 vehicles were screened in the checkpoints. Some 22 drivers were evaluated for being under the influence of alcohol, but none of them were arrested, according to Officer Ron Klein.

One of the drivers arrested for driving on a suspended drivers license, one of them, Jennifer Markovich, was also arrested for having false registration tabs on her vehicle, which was registered in her name.

The other drivers were given citations to appear and released.

Four vehicles were towed, and three of them were impounded for 30 days.

The checkpoints were funding by a grant from the California Office of Traffic Safety.