Thousands of people living close to a volcano in Indonesia have been forced to flee their homes after it began erupting violently.
Mount Sinabung, on the island of Sumatra, became active again in 2010 but there has been more activity since 2 June.
Before 2010, the volcano had been dormant for more than 400 years.
At least 3,000 people living near its slopes have had to leave, including 1,200 on Monday alone.
Scientists worry the volcano could pose more dangers in the coming weeks.
On Monday, there were at least 28 pyroclastic flows - surges of hot ash and gas that rush down the side of the mountain at high speed.
Gede Suantika, an Indonesian government volcanologist, said there were signs a lava dome was growing on Mount Sinabung.
Lava domes are pile-ups of magma near the vent at the top of a volcano, that have been known to collapse and flow down mountain sides at high speed.
Why are Mount Sinabung's pyroclastic flows so deadly?
The danger alert for Mount Sinabung was raised to its highest level on 2 June. Thousands more people are likely to have to evacuate the area in the coming days, a military commander in Sumatra told AFP.
At least 14 people died when pyroclastic flows from Mount Sinabung struck villages in February last year.
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