Dhaka, March 29 -- Myanmar's military rulers let in hundreds of foreign rescue personnel on Saturday after an earthquake killed more than 1,600 people, the deadliest natural disaster to hit the impoverished, war-torn country in years.

Friday's 7.7 magnitude quake, among the biggest to jolt the Southeast Asian nation in the last century, crippled airports, bridges and highways amid a civil war that has wrecked the economy and displaced millions.

The death toll in Myanmar climbed to 1,644, the military government said on Saturday, according to BBC Burmese news service.

In neighbouring Thailand, where the quake rattled buildings and brought down a skyscraper under construction in the capital Bangkok, at least nine people were killed.

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