An explosion has taken place at the Mayon volcano in the Philippines, prompting fears a violent eruption is imminent.
The explosion at the most active volcano in the country saw steam, ash and lava fragments billowing into the air, according to The Guardian.
Officials said molten rocks, lava and steam also came down the sides of the mountain, whilst nearby villages were plunged into darkness.
The alert level for the volcano has now been risen to four, out of a possible five, and an eruption could take place within hours.
The danger zone radius around the crater has also been increased to five miles. Aircraft have been warned not to go near Mayon.
More than 27,000 people have already evacuated from the area, as much activity at the volcano started last week.
In 2013 five climbers were killed by an eruption at the volcano which took them by surprise, having defied warnings to avoid the crater.
Watch a video of scenes at the volcano below