LAWRENCE, Kan. (AP) -- A student at the University of Kansas has filed a lawsuit accusing a fraternity of allowing underage drinking, which he claims led to his severe head injury.

The Lawrence Journal-World reports (http://bit.ly/Zd43VA ) that 20-year-old Andrew Charles Johnson of Salina filed the lawsuit in Douglas County court against the Sigma Phi Epsilon fraternity.

Johnson claims he and other other underage fraternity members were provided unlimited access to alcohol and encouraged to drink during a 2011 party. According to Johnson, later that night another student rammed his head into a concrete wall, causing a "massive closed head injury." The lawsuit claims the injury caused brain damage that's eliminated Johnson's sense of smell and left him with cognitive deficiencies.

The fraternity's national office in Richmond, Va., declined comment because the case is pending.