At least 60 Palestinians have been killed and 2,000 injured after the Israeli Defence Force (IFD) opened fire on protestors at the Gaza border yesterday.
The bloodshed came as the US officially opened its embassy to Israel in Jerusalem, a controversial move given the city is also claimed as the capital of Palestine.
Today Russia waded into the row, claiming they had warned the US not to move the embassy from Tel Aviv and feared Donald Trump would be a destabilising influence in the Middle East.
The Kremlin today expressed its “deepest concern” at the killings, which the IDF claimed was carried out in self-defence. The White House today also blamed Palestine for the deaths, claiming Hamas had attacked the border.
A spokesman for the Kremlin said: “From the very beginning, Moscow expressed concern actions by the United States could provoke tensions in the Middle East.
"Unfortunately, that is exactly what happened."
The spokesman said the Kremlin is monitoring the situation on the Gaza border closely, adding the violence "can only elicit the deepest concern".
He said: “We continue to consider that all sides, all countries and especially the participants of the Middle East Quartet should avoid any action provoking such flashes of tension."
esterday Turkey also condemned Mr Trump for the massacre, which saw the highest death toll in a single day since the 2014 Gaza War.
Speaking after the embassy was officially opened yesterday, Turkey's Foreign Ministry said: “We curse the massacre carried out by Israeli security forces, encouraged by this step, on the Palestinians participating in peaceful demonstrations.”
Prime Minister Binali Yildirim later added: "Unfortunately, the US has arrogantly stood by the Israeli administration which kills civilians and has partnered in this crime against humanity.
"This provocation will only worsen the problems in the region and cause a deeper mark in the Israeli-Palestinian relationship, and will make peace in the region more difficult."
He said US President Donald Trump was attempting to distract attention from domestic problems by moving the embassy, adding he was "trying to hide the fire inside by setting fires outside".
And Egypt also hit out, warning of “negative repercussions”.