Following a nearly three-day airport shutdown sparked by the volcano-hit Indonesian island, flights resumed on Wednesday. 

More than 4,500 tourists have since been flown out of the island, as a switch in wind direction sent volcanic ash away from the Bali's airport.

On Thursday morning, Agung was partially shrouded by clouds, and parts of Bali lashed by monsoon rain, but according to officials there were persistent tremors from the crater.

"Mount Agung continues to erupt, ejecting volcanic ash up to 2,000 meters (6,500 feet) in height," Sutopo Purwo Nugroho, a spokesman for Indonesia's disaster mitigation agency, said via Twitter.

The reopening on Wednesday afternoon of Bali's airport, which is about 60 kilometers (37 miles) away from Mount Agung, followed a downgrade in an aviation warning to one level below the most serious, with the arrival of more favorable winds.

Bali airport's call center said three flights had left on Thursday morning, while nine had arrived. Its website showed dozens of flights scheduled to fly to Singapore, Seoul, Perth and other cities.

Two Chinese state-owned airlines on Wednesday night sent flights to fetch more than 2,700 Chinese tourists from Bali, Xinhua news agency said. China Southern Airlines sent two planes from Guangzhou and Shenzhen, while China Eastern Airlines flew in four from Beijing and Shanghai, it said.

From January to September, Bali received 4.5 million foreign tourists, nearly half of the 10.5 million arrivals in Indonesia. Chinese tourists represent around a quarter of arrivals, outnumbering Australians traveling to Bali, .

While Bali's airport was open again after a more than two-day closure, the airport on neighboring Lombok island was closed on Thursday due to ash from Agung, air traffic control provider AirNav said.

fm/eg (Reuters, AFP)