TEHRAN (Press Shia Agency) – Syria wrote to the United Nations, urging a transparent and impartial probe into the recent massacre of scores of civilians in a US airstrike in the Arab country’s east.

Two separate letters were sent to the UN chief and president of the UN Security Council by Syria’s foreign ministry, calling the massacre “a war crime and a crime against humanity,” the official SANA news agency said.

The Friday attacks targeted the villages of al-Sousa and al-Bubadran in Deir ez-Zor, killing 62 civilians, mostly women and children. The airstrikes also injured an unidentified number of others, some of whom are in critical condition.

The bloodshed “proves once again the coalition’s disregard for international law and the international humanitarian law,” a part of the letter read, according to Press TV.

It “belies the coalition’s claims of fighting ISIS terrorism while in reality it is supporting its continuity in Syria,” the letters added, referring to the Daesh terror group by another acronym.

The letters demanded that the UN Security Council take “a prompt action to end these crimes."

The US and its allies invaded Syria in 2014 under the pretext of fighting Daesh. They forwent Syria's consent in launching the invasion which still continues even though Washington claimed victory over the Takfiri group last year.

Airstrikes by the US and its allies across the Arab country have killed more than 3,300 civilians, according to the so-called Syrian Observatory for Human Rights which is based in London.