Kathmandu, Nepal: Rescuers on Thursday pulled a teenage boy out alive from under the rubble of a guesthouse in Nepal that collapsed in the massive earthquake at the weekend, police said.

‘A 15-year-old boy has been rescued from the rubble of a lodge called Hilton Guesthouse,’ said police spokesman Kamal Singh Bam. ‘We are awaiting more details.’

The teenager was the latest miracle survivor to be rescued in the devastated Himalayan nation after Nepalese and French emergency workers pulled a 28-year-old man alive from the rubble late on Tuesday.

Local media reports said that the teenager had been taken to hospital for treatment.

Many of the communities worst affected by the earthquake -- the biggest to hit Nepal in over 80 years -- are in remote areas of the Himalayas that rescuers have not been able to reach.

Frustration is growing in parts of rural Nepal over the pace of relief efforts, with some badly-affected villages yet to receive any assistance.

‘We will die if there is no help from the government or other organisations,’ Dhan Bahadur Shresta, a resident of Deupur Sipaghat Kavre village, told our correspondent.

‘We will starve to death and could get diseases like cholera and dysentery and there could be an epidemic.’

Some helicopter crews who have managed to land in isolated communities have been faced with desperate villagers pleading to be airlifted to safety.

In the village of Sangachowk, angry villagers blocked the main road with tyres and stopped trucks of rice and other aid headed for other areas, Reuters news agency reported.

The villagers also reportedly blocked a convoy of army trucks loaded with relief supplies, leading to a tense standoff with armed soldiers.

‘Although I am heartened and encouraged by the progress of the response to date, efforts need to be maintained and stepped up to ensure vital assistance reaches all the affected, especially those in the remote areas,’ said the UN's resident co-ordinator for Nepal, Jamie McGoldrick.

There were more angry scenes in Dolakha, east of Kathmandu, when residents smashed the windows of a local administrative building, Chief District Officer Prem Lal Lamichhane said.

‘Over 200,000 people are homeless. We've been told that materials are on their way, but we haven't received them yet,’ he added.

Despite extensive damage, experts say the number of casualties in many villages was lower than feared because people were working outdoors at the time the quake struck.

Riot police face angry crowd in Kathmandu.

In Kathmandu, riot police clashed on Wednesday with protesters angry at a lack of transport out of the city and delays in distributing aid. Thousands were waiting for buses to take them to rural areas.

‘We've been left starving in the cold and the best this government can give us is this queue,’ said one resident, Rajana, as she queued for a bus to her home village.

Witnesses said a truck carrying drinking water was forced off the road and protesters climbed on top of it, throwing the bottles into the crowd.

Columns of riot police stood behind rolls of razor wire as protesters surged into the street.

However, there have been some signs that parts of the capital are returning to normal.

Some people have decided to return to their homes, having spent several nights in the open. Cash machines have been refilled and some shops and street vendors have once again started trading.