YEMEN'S human rights minister says she will work to relaunch a bill fixing the minimum marriage age at 17, after the reported death of a young girl on her wedding night.

Eight-year-old Rawan was said to have died last week from internal haemorrhaging after sexual intercourse on her wedding night, after having been married to a man in his 40s in the northeastern province of Hajja.

"I wrote to the president of the chamber of deputies to re-file on the parliamentary agenda the bill limiting the age of marriage to 17 years, which has been suspended since 2009," Huriya Mashhoor told AFP on Saturday.

Ms Mashhoor spoke a day after the government formed a committee to investigate the reports of the girl's death.

"We do not have enough evidence at the moment" about the incident, Ms Mashhoor said.

"But I am worried that there could be an attempt to silence the matter, especially as it took place in an isolated rural area in Hajja province where there have been similar cases before".

"If the case was confirmed and covered up, then the crime would be more serious," Ms Mashhoor warned.

Ms Mashhoor has been involved in a campaign against the marriage of child brides in Yemen, ravaged by years of strife and widespread poverty. There is no clear definition in the country of what constitutes a child, making it difficult to battle the practice.

Human Rights Watch said on Wednesday that 14 per cent of girls in Yemen are married before the age of 15, and 52 per cent before 18, citing Yemeni and 2006 data from the United Nations.

Originally published as Yemen in push to ban child brides