Relief efforts in Nepal are intensifying after more than 2,300 people were killed in the worst earthquake there in more than 80 years.

Rescue missions and aid material have started arriving in the country.

The 6.7-magnitude tremor, centred 60km (40 miles) east of Nepal's capital Kathmandu, sent people running in panic for open ground in the city.

The maximum deaths have been reported in Sindhupalchowk district where 80 people lost their lives.

The quake has killed 70 in Rasuwa, 57 in Kavre, 40 in Gorkha, 35 in Dhading, 10 in Okhaldhunga, nine in Makwanpur, six in Sunsari and two each in Bhojpur and Solukhumbu.

The tremor also shook India, Tibet, Bangladesh and Pakistan.

At least 36 people -- 25 in Bihar, eight in Uttar Pradesh and three in West Bengal -- were killed and more than 100 injured in India.

The impact was felt in many states in India, particularly in Bihar, Uttar Pradesh, Sikkim, West Bengal and Delhi.