A Lion Air passenger plane has come down in the sea after taking off from Jakarta, say Indonesian officials.
Flight JT-610 was on a scheduled flight from the Indonesian capital to Pangkal Pinang, the main city in the Bangka Belitung Islands.
It was not immediately clear how many people were on board the plane, believed to be a Boeing 737.
A Lion Air official told the BBC the company did not yet know what had happened to the plane.
But a search and rescue operation is under way.
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