PRAGUE, March 12 (Xinhua) -- Three children died and four adults were injured in an early morning fire in a family house in Oleksovice near Znojmo, Czech Republic on Monday.

The fire broke out early morning Monday, with firefighters working on putting out the fire from around 4 a.m. local time. They managed to extinguish the fire after more than two hours.

South Moravia fire corps spokesman Jaroslav Mikoska. said the fire completely destroyed one room where children stayed and caused damage to other rooms and the corridor.

The three deceased children were born in 2009, 2014 and 2017.

According to emergency service spokeswoman Michaela Bothova, the four adults were taken to the medical facilities.

Znojmo police spokeswoman Lenka Drahokoupilova said the cause of the fire was under investigation.