LEOMINSTER (CBS) – An 18-year-old was arrested and charged in the fatal stabbing of his 21-year-old brother in Leominster on Sunday afternoon.

Police responded to a home at 157 Berrington Road for a reported fight at around 1:45 p.m.

Richard L. Morales Jr. died of a stab wound to the chest at the hospital just before 2:30 p.m. His brother, Andrew Morales, was charged with his murder.

Andrew Morales is set to be arraigned Monday in Leominster District Court.

The Worcester County District Attorney’s office and Leominster police are investigating.