Tucson police released a composite sketch of a man who is believed to have sexually assaulted five women since January in midtown. 

Courtesy Tucson Police Department

Five women who were walking alone outdoors were sexually assaulted in the midtown area since January in separate incidents, police said.

The series of assaults — between January to April — occurred in the area of East 22nd Street and South Craycroft Road, said Sgt. Chris Widmer, a Tucson Police Department spokesman.

The attacks happened between 11 p.m. and 7 a.m., and are possibly related, Widmer said. In four of five of the attacks, the man was armed with a weapon.

The victims described the suspect as either a light-skinned Hispanic or white man who is between 25 to 30 years old. He is about 5 feet 4 inches tall to 5 feet 6 inches tall, said Widmer.

The man has a thin build and weighs between 110 to 140 pounds. He has short brown hair, a light mustache and acne or pock marks on his face.

Police advise people to walk in pairs or in a group whenever possible, and to remain aware of their surroundings. Police also ask that suspicious activity be reported.

Anyone with information is asked to call 911 or 88-CRIME.