Underwater volcano disrupts flights

Flights to the island of Tonga have been cancelled after a volcano erupted, spewing ash into the sky.

Tonga is a small island in the Pacific Ocean, east of Australia.

Experts from New Zealand's GNS Science agency said volcanic activity had been recorded for a few weeks.

It's thought the volcano may have started under the ocean but erupted out of the water, creating a tiny new island.

Airlines hope they can begin sending planes to Tonga again on Wednesday, as long as the ash has cleared.