Nepalese police say three bombs exploded in quick succession in and around Kathmandu on Sunday killing two people and wounding about 20 others.
Officials say one bomb went off inside a bus in the center of the capital. Another blast happened near a university campus south of Kathmandu, and a third hit a northern suburb.
A little-known group called the Terai Army claimed responsibility for the bombings in calls to local media. The rebel group is one of several fighting for the autonomy of Nepal's southern Terai plains, which border India.
Today's bombings are the first in Kathmandu since former Maoist rebels joined a peace process with the government last year.
Kieron Dwyer, a UN official in Nepal says the attacks will raise the level of fear in Kathmandu.