The Pittsburgh Bureau of Police is alerting residents to a series of reported sexual assaults that may be connected on the city’s North Side during early-morning hours, the department said Wednesday.

Police described the suspect as a smaller white male driving a white pickup truck. Investigators believe he may be a repeat offender.

The bureau urged residents to take extra precautions: travel in groups when possible, remain alert in public spaces, and report any suspicious activity immediately by calling 911.

Anyone with information about these incidents is asked to contact the Special Victims Unit at 412-323-7800.

Police said they have increased patrols in the affected areas and are dedicating additional resources to the investigation. “Our priority is the safety of the community and we are working tirelessly to identify and apprehend the suspect,” the department said in a statement.

This is a developing story. It will be updated as more information becomes available.