Indonesia's Mount Merapi volcano belched ash and toxic fumes into the atmosphere on Sunday, but authorities played down the threat to aircraft just two days before U.S. President Barack Obama was due to fly in.
White House officials said they were watching developments "very closely," but there were no plans for now to reschedule a visit that has already twice been postponed.
The volcano, on the outskirts of Yogyakarta city in Central Java, began spewing lava, superheated gas and deadly clouds of ash two weeks ago and has so far killed over 120 people and forced the evacuation of more than 150,000.
While the volcano is around 600 kms (400 miles) east of the capital, Jakarta, and authorities there said it had no impact on flying conditions, many international airlines canceled services to the country's main Sukarno-Hatta airport.
