Geneva: The United Nations’ top human rights forum on Friday condemned the involvement of foreign fighters in Syria’s civil war, singling out the pro-regime forces sent across the border by Lebanon’s Hezbollah.

The 47-member UN Human Rights Council backed a resolution from the US, Britain, Qatar, Kuwait, Saudi Arabia and Turkey, with 37 votes in favour, nine abstentions and just one member, Venezuela, against.

The text said that the council “condemns the intervention of all foreign combatants in the Syrian Arab Republic, including those fighting on behalf of the regime and most recently Hezbollah”.

It said that the involvement of foreign forces in the conflict “further exacerbates the deteriorating human rights and humanitarian situation, which has a serious negative impact on the region”.

At a May 29 sitting the council had also condemned the Syrian regime’s use of foreign fighters in the besieged town of Qusayr, near the Lebanese border, and ordered an urgent probe into the killings there but stopped short of naming Hezbollah.

Friday’s resolution condemned “in the strongest terms all massacres taking place in the Syrian Arab Republic and stresses the need to hold those responsible to account”, as well as “all violence, especially against civilians, irrespective of where it comes from, including terrorist acts and acts of violence that may foment sectarian tensions”.

It also noted the “widespread and systematic gross violations of human rights and fundamental freedoms and all violations of international humanitarian law by the Syrian authorities and the government-affiliated Shabbiha militias”.

At the same time it also condemned similar abuses by rebels, but underlined that a UN commission of inquiry had stated that they had not reached the intensity and scale of those committed by the regime camp.

The council also reiterated its demand that Syria admit the commission of inquiry, which was set up in September 2011 but has failed to win entry.

The council vote came a day after new figures from the United Nations showed that at least 93,000 people-including 6,500-have been killed since the war erupted in March 2011 after protests against Syrian President Bashar Al Assad.

More than 1.6 million Syrian refugees have fled to neighbouring countries, and the UN warns that the number could more than double this year.