Nepal's military officials say at least 15 civilians were injured when Maoist rebels threw a crude bomb near a hospital in a southwestern part of the country.
They say the bomb, which was apparently aimed at an army truck passing by, missed its target and exploded near the gate of Nepalganj Medical College hospital late Tuesday.
One of the injured is said to be in critical condition.
The rebels have pledged not to target civilians, following a land mine explosion under a bus that killed at least 38 civilians earlier this month. The rebels admitted the attack was a mistake.
Rebel violence in Nepal has escalated after King Gyanendra seized absolute power in February, saying the government had failed to crush the nine-year-old insurgency.
Some information for this report provided by AP and Reuters.