Beijing: Sixty three Chinese miners escaped from fire engulfing a coal mine while 36 were still trapped inside.

Twenty-eight miners are still trapped underground while 63 others have escaped till Thursday morning after a coal mine fire in east China's Shandong Province on Thursday, local authorities said.

A total of 91 people were trapped after an air compression device at a parking lot 255 metres underground caught fire on Wednesday evening, a spokesman of the provincial government said.

Till Thursday morning 63 miners have been rescued. Rescue work is still underway.

An investigation into the cause of the fire has been launched, as reported in news daily.

An expert team headed by Luo Lin, head of State Administration of Work Safety, as well as major provincial officials including the province's Communist Party of China chief Jiang Yikang, have arrived at the mine to oversee the rescue work.

The mine belongs to Zaozhuang Fangbei Coal Mine Co Ltd in Xuecheng District in Zaozhuang City.

The licensed coal mine is a low gas mine which had completed technical revamp in June 2010 to expand production capacity to 150,000 tonnes a year.

The work underwent an approaval check in October the same year.