Two motorists were arrested and charged with drunken driving at a Howard County sobriety checkpoint late Saturday, police said in a statement, adding that officers also arrested two more drivers on other charges.

Police said that of the 858 vehicles that passed through the checkpoint — which was in force into the early-morning hours Sunday on eastbound MD Route 175 at Columbia Gateway Drive — seven were pulled over for examination.

Two of the drivers were arrested and charged with driving under the influence, police said. One driver was arrested for a drug violation and another for driving with a suspended license, police added.

erica.green@baltsun.com.