Southampton Town police have arrested three men from Riverhead Town in separate incidents on driving while intoxicated and drug possession charges, according to a press release issued Friday morning.

William Evans, 47, of Riverhead was arrested and charged with driving while intoxicated and third-degree aggravated unlicensed operation of a motor vehicle Thursday night after he drove off the roadway and collided with a sign, Southampton police said.

An investigation revealed Mr. Evans was driving with a suspended license, according to a police report.

Dwayne Harris, 27, of Riverhead was arrested and charged with fifth-degree criminal possession of a controlled substance and unlawful possession of marijuana early Friday morning after a traffic stop, police said.

Mr. Harris was a passenger in a vehicle when police found he was carrying “a quantity of marijuana and cocaine,” according to a police report.

Jovan Coffey, 30, of Calverton was arrested and faces multiple drug charges after he was involved in an altercation in Northampton Friday, police said. Police said they found that Mr. Coffey was carrying heroin and charged him with third- and seventh-degree criminal possession of a controlled substance.

All three men were processed and held for morning arraignment.