All flights at Indonesia's main international airport have been cancelled after Mount Anak Krakatau erupted, sending a massive cloud of volcanic ash 50,000ft (15km) into the sky.

Indonesia halted operations at its main international airport outside Jakarta on Sunday after ash spewed from the Anak Krakatoa volcano more than 150 km away, impacting thousands of passengers.

The suspension, extending a halt that had been scheduled until 5:30 a.m., has affected 209 flights, including several international flights, Indonesia's transportation ministry said