Ban Ki-moon, the UN Secretary General, has condemned recent attacks by Daesh after nearly 150 people were killed on Syria’s Mediterranean coast.
The state media has said that at least 200 more people were wounded on Monday in the government-controlled northern cities of Tartus and Jableh – areas which host Russian military bases.
Daesh claimed responsibility for the attacks, saying they were targeting members of President Bashar al-Assad's Alawite minority.
The Britain-based Syrian Observatory for Human Rights said at least five suicide bombers and two devices planted in cars were the cause of the carnage.
Russia’s Ministry of Defence has called for a temporary truce to begin in two Syrian towns.
A ceasefire has been in place in Syria since February and UN talks involving Russia, the US, Syria and European and regional officials have been ongoing since.
The talks aim to find a political solution for the crisis.
Daesh itself is not part of the talks and operations against them have continued.
State television reported that the Syrian Foreign Ministry sent a letter to the United Nations, saying the blasts were a ‘dangerous escalation by the hostile and extremist regimes in Riyadh, Ankara and Doha’, referring to support given to the rebels by Saudi Arabia, Turkey and Qatar.