The United Nations should investigate violations of international humanitarian law committed by all sides in Yemen's civil war, Amnesty International said on Friday, six months after the start of a Saudi-led military campaign against Houthi forces.

More than 4,500 people have been killed in Yemen since March, according to U.N. figures, when Saudi Arabia and other Sunni Muslim Arab states launched a military campaign to drive back Houthi forces and restore a government which fled abroad.

Months of air strikes have pushed the Houthis out of the southern port city of Aden, but a ground offensive at the capital Sanaa further north has made little progress and civilian casualties have mounted as the fighting continues.

"The organisation is urging the creation of a UN Commission of Inquiry into violations and abuses committed by all parties to the Yemen conflict, at the current Human Rights Council session in Geneva which concludes on 2 October," Amnesty said.

"With no end to this deadly conflict in sight and a spiralling humanitarian crisis, civilian suffering is at an all-time high."

Source: MENA