BEIRUT, Lebanon, Nov. 15 (UPI) -- Five brothers have been arrested in Beirut in the shooting deaths of four men in suburbs of the Lebanese capital; a source told The Daily Star.

The brothers were arrested during a raid at their house in Beirut at 4 a.m. Tuesday by members of the Internal Security Forces, the source told the newspaper.

All four victims had been shot in the head with a 7.85mm pistol, the source said.

The five men who were arrested were identified as Lebanese-Armenians George, Aziz, Massis, Maurice and Michel Tanelian.

Their arrests came a month after police began surveillance after the Oct. 14 killings of Albert Ramez Nashar, 52, and Shaker Said Abdel-Nour, 48. Nashar's body was dumped under a bridge connecting Antelius to Naccache, and Abdel-Nour's body was found next to a bridge in Sin al-Fil, the Star said.

The two other victims' bodies were found Saturday.

The body of Lebanese Army Cpl. Ziad Hani Deeb, 30, was found on a road near the Beirut River, and the body of Hagob Yakoubian, a 50-year-old Lebanese-Armenian, was discovered behind a church in the Sadd-Boushrieh area in north Beirut.

Interior Minister Marwan Charbel told a local radio station the five brothers were being interrogated.