A primary school headmaster has been sacked over child molestation in south China's Hainan Province, local authorities said on Tuesday.

The headmaster surnamed Wang of Kongshui Primary School in Kongshui village of Chengmai County was dismissed on April 9, said Chengmai county government.

No further details have been released, and police are still investigating the case.

A string of child molestation cases at campuses, mostly in primary and middle schools, have been exposed across the country in recent years, sparking concerns about the safety of students and calls for strict management of teaching staff.