Unrest killed at least 14 people and injured dozens in Nepal's capital on Monday, state TV said, as police fired tear gas and rubber bullets at protesters trying to storm parliament in anger at a social media shutdown and corruption, Reuters reported.

Some protesters forced their way into the parliament complex by breaking through a barricade, a local official said, setting fire to an ambulance, hurling objects at riot police and ferrying the injured to hospital on motorcycles.

"The police have been firing indiscriminately," one protester told the ANI news agency. "(They) fired bullets which missed me but hit a friend who was standing behind me. He was hit in the hand."

More than 50 people were injured, Nepal Television said, according to Reuters.

There was no official confirmation of the deaths and injuries and Reuters could not independently verify the figures.

Ekram Giri, a parliamentary spokesperson, said some protesters had entered the premises but not the main building, and had been driven out by police.

Organisers of the protests, which spread to other cities in the Himalayan country, have called them "demonstrations by Gen Z". They say the protests reflect young people's widespread frustration with the government and anger over its policies, Reuters reported.