Patna: Four suspects of the recent killing of Patna university professor Papiya Ghosh were arrested early this morning, police said.

Some of the belongings of Ghosh, including her car and computer, that were looted during the incident on December 3, which sent shockwaves across the state have also been recovered during the night-long raids on the hideouts of the suspects in Digha police station limits.

Ghosh and her maid servant Malti were stabbed to death at her residence in Pataliputra colony area of the state capital.

Those arrested were being interrogated, the police said without disclosing their names.