LEWISTON — More than a dozen people were summoned last weekend on charges related to drinking parties at Bates College.

Lewiston police, working details on and around the campus, issued 11 civil citations for possession of liquor by minors. Another two were given criminal summonses, charging providing a place for minors to consume alcohol.

Police said the summonses were handed out Friday and Saturday nights while officers were at Bates as part of an ongoing effort to combat raucous parties and underage drinking.

Those charged were found to be drinking on public streets and sidewalks at several locations near the campus. The pair charged with providing a place for minors to drink were in off-campus apartments, police said.

All of those charged are students at Bates. Police declined to release the names of those charged because they were not physically arrested.

In recent months, Lewiston police have met several times with Bates administrators, student representatives and neighbors who live near the campus to address the matter of parties at the college.

Earlier this month, the City Council voted to institute new parking restrictions aimed at cracking down on disruptions to neighborhoods on residential streets near the college.

“Your streets are not going to be turned into fraternity row,” Lewiston Mayor Robert Macdonald said at the time.

In July, nearly four dozen people packed a room at Pettengill Hall to voice their unhappiness about what one neighbor deemed “students behaving heinously” at and around Bates College.

On Friday, Lewiston police Lt. David St. Pierre said his department remains in contact with students and administrators at Bates as their plans to crack down on disruptive parties continue.