A Tucson police officer was bitten in the fingers and another was hit in the head with a rock in a scuffle with two suspects on Tucson's south side. 

Officers in the Tucson Police Department's Targeting All Graffiti, or TAG unit, was following up on recent graffiti incidents near 17th Avenue and Nevada Street around 1:45 p.m. when they saw six people spray painting in the nearby Arizona Department of Transportation parking lot, said Officer Brandon Tatum, a TPD spokesman. 

Two officers approached the group to detain them and four ran off, but two got into a fight with police, Tatum said. 

One of the officers was hit with a rock and the other was bitten in the fingers during the fight, he said. 

The two suspects ran away and officers set up a perimeter to find all the suspects. 

Police detained four of the suspects, the two males who were involved in the fight with officers and two females, Tatum said. 

One of the males was bitten by a K-9 and taken to the hospital. 

The officers had minor injuries and were taken to the hospital as a "precautionary measure," Tatum said. 

No other information was immediately available.