India, July 11 -- Greek anti-terrorist police arrested three people on Friday in connection with a series of firebomb attacks against conservative party politicians that left one person dead and injured another four, authorities said.

The predawn bombings in the northern city of Thessaloniki on July 1 targeted the homes of members of Greece's governing conservative New Democracy party. The 72-year-old mother of parliamentary candidate Afroditi Nestora was killed after a crude bomb made with camping gas canisters exploded under Nestora's car, which was parked at the entrance of her apartment building.

Nestora herself suffered burns and remains hospitalised, but briefly left hospital Thursday to attend her mother's funeral. Her father and...