A leader of the ruling Rashtriya Janata Dal was shot dead on Tuesday by unidentified criminals in Samastipur in Bihar, police said.
According to police officials, criminals used an AK-47 assault rifle in the crime. A case was registered against four accused. Police later arrested two people in the case.
The supporters of RJD leader Virendra Yadav indulged in violent protests and blocked roads and shouted slogans against the district police in Samastipur after the killing.
Earlier, Lok Janshakti Party leader Brijnathi Singh was shot dead in Patna and Bharatiya Janata Party's state vice president Viseshwar Ojha was fatally shot in Bhojpur district.