Gunmen opened fire on a vehicle in Kabul around 830am on Sunday, Kabul police reported, and two female judges of the Supreme Court were killed and two other people--the driver and another female--were wounded in the attack, according to the Presidential Palace.

The police are investigating the incident, said local officials.   

Some members from each side in Doha, including the chief negotiators, held a meeting on Sunday evening and discussed the agenda, said Republic negotiator Nader Nadery.

The meeting comes after days of delay.