The PSNI has arrested two men over the murder of a Catholic community worker in Coleraine in May.
A 60-year-old suspect was taken in custody hours after a 35-year-old man was also arrested for questioning over the murder of 49-year-old Kevin McDaid.
The pair, who were detained in town, are also being questioned about the attempted murder of 46-year-old Damien Fleming.
Mr McDaid and Mr Fleming were attacked by a group of people in the Heights area of Coleraine.
Ten people have so far been charged in connection with the attack, six with murder.
