LEWISTON — Paul Robinson, 33, of Lewiston was sentenced Tuesday in U.S. District Court to serve 121 months in prison, followed by five years of supervised release for distributing cocaine base, also known as crack cocaine, conspiring to distribute crack cocaine and possessing a firearm during a drug-trafficking crime.

Robinson pleaded guilty Sept. 4, 2014.

According to a news release from the U.S. Department of Justice, court records reveal that between early 2011 and September 2013 Robinson and others obtained crack cocaine in Massachusetts for distribution in the Lewiston area.

On April 11, 2013, after Robinson distributed about an ounce of crack cocaine, law enforcement officers executed a search warrant at Robinson’s Bartlett Street apartment in Lewiston. Among the items seized were crack cocaine, about $4,500 in cash, two firearms, video monitors attached to surveillance cameras facing the front of the building, and EBT cards in the names of five people.

In total, Robinson was held responsible for 2.73 kilograms of crack cocaine.

The case results from a joint investigation of the Maine Drug Enforcement Agency, the U.S. Drug Enforcement Administration, the Maine State Police, the Lewiston and Auburn police departments, and the Androscoggin County Sheriff’s Department.

The investigation was part of the ongoing effort of the Organized Crime Drug Enforcement Task Forces, a partnership between federal, state and local law enforcement agencies.