Amazing UFO cloud appears during eruption of the Volcano Sangeang in Indonesie - May 31, 2014

This is the incredible moment when Indonesia's Sangeang Api volcano erupted and sending ash spewing an estimated 12 miles into the sky and sent an amazing UFO shaped ring of pyroclastic smoke (Other UFO-like clouds are the so-called lenticular clouds) high into the air.

The volcano off the northeast coast of the Indonesian island of Sumbawa, which blew late Friday and is continuing to discharge debris with further eruptions.

Photo credit: Sofyan Efendi - Barcroft Media.

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Sangeang Api (Gunung Api or Gunung Sangeang) is an active complex volcano on the island of Sangeang in Indonesia. It consists of two volcanic cones, 1,949 metres (6,394 ft) Doro Api and 1,795 m (5,889 ft) Doro Mantoi.

Sangeang Api is one of the most active volcanoes in the Lesser Sunda Islands. It erupted in 1988 and the island's inhabitants were evacuated. Between its first recorded eruption in 1512 and 1989 it erupted 17 times. It erupted again during December 2012 and May 2014.