Police says activists attacked a passenger bus defying an opposition-called transport blockade with gasoline bombs, injuring 12 people on board.
Suspected opposition activists attacked the bus, which was part of a convoy being escorted by police after midnight near Basamadi village on the Mahendra highway in southern Nepal.
The attackers fled in the darkness. Police believe they were supporters of the alliance of 33 opposition parties who have been attacking vehicles to enforce their 9-day transport blockage since Tuesday aimed at disrupting next week's elections in Nepal.
A similar attack on a passenger van on Wednesday in Katmandu left 9 people injured.