Footage has emerged of Syrian 'moderate' rebels allegedly carrying out a public flogging on three men accused of harassing women in north-western Syria.

The video shows several militants from the Gulf-backed rebel coalition Jaish al-Fatah (Army of Conquest) implementing Shariah law in the rebel-held city of Idlib.

The three young men were accused of harassing women and were sentenced to a multiple lashes which were implemented in front of a large crowd.

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Footage has emerged of Syrian 'moderate' rebels allegedly carrying out a public flogging on three men accused of harassing women in north-western Syria

The video shows several militants from the Gulf-backed rebel coalition Jaish al-Fatah (Army of Conquest) implementing Shariah law in the rebel-held city of Idlib

Some of the coalition rebel groups are considered part of the 70,000 'moderate' rebels, which David Cameron has indicated Britain may provide support.

The news comes after Syria's main opposition body agreed to travel to Geneva, where peace talks following a phone call from the U.S. Secretary of State.

The High Negotiations Committee (HNC) has receiving guarantees that their demands would be met.

It repeatedly said the Syrian government and its allies must first halt bombing and lift blockades of besieged areas before it will join the talks, which have been delayed by four days.

The HNC signalled it would still leave the process if these measures are not implemented and only agreed to attend after receiving assurances from the US.

'Guarantees came that (United Nations) Resolution 2254 would be implemented in full ... so we will go to Geneva to discuss humanitarian issues,' spokesman Salim al-Muslat told the Arabic news channel al-Arabiya al-Hadath on Friday.

'The HNC will go to Geneva tomorrow to discuss these humanitarian issues which will pave the way into the political process of negotiations,' al-Muslat said.

After receiving invitations to the talks this week, the Saudi-backed HNC wrote to the U.N. secretary general requesting clarification on the implementation of steps outlined in a December U.N. Security Council resolution that endorsed the peace process.

These included the lifting of blockades on besieged areas, a halt to attacks on civilian areas, and a release of arbitrarily detained people.

The footage shows how one of the militants announced the men's crimes to a large crowd

The three young men were accused of harassing women and were sentenced to a multiple lashes which were implemented in front of a large crowd

The decision to travel from Riyadh, where the HNC has been meeting to debate their attendance, came after a telephone call with U.S. Secretary of State John Kerry and after receiving an answer from the U.N. to their letter.

'We have agreed on a certain time period, which I cannot disclose now,' al-Muslat said. 'Perhaps the coming days will show a serious approach to this issue. If there is then we will continue. If we don't see a serious approach then there will be a different decision.'