NEWS GOOGLE! SOUTH EAST ASIA!

THAILAND - At least four luxury hotels located near the protest site at the Rajprasong intersection, and Silom area have confirmed they would be shutting operations for a short period even as the number of restaurants downing their shutters is increasing.
The four hotels account for 1,500 rooms and employ 2,000 people.
The general manager of Holiday Inn Bangkok and InterContinental Bangkok, Markus Platzer, expressed concern for the safety and security of hotel guests and employees.

I think its because of the rally in Thailand that the government think that it is safer to close the hotels down for the tourists' protection.