ISIS launched a counter-attack on an entrance that the regime's forces managed to break in on Tuesday in a bid to re-impose the blockade on the 137th Brigade in Deir al-Zour and the neighborhoods under Assad's control.

According to the Syrian Observatory for Human Rights, ISIS targeted the positions of the forces of the regime in the area of the entrance and its perimeter with 6 bobby traps in the midst of fierce fighting between the two parties.

The Observatory also stated that the regime's forces and militias, supported by Russian planes, were defending the entrance to prevent terrorists from returning.

For its part, the Russian Defense Ministry underlined that the intelligence obtained through various channels, confirms that the entrances and perimeter of the city of Deir al Zour were under the control of elements descended from Russia and the countries of the Commonwealth of Independent States

source: Alarabiya