Story highlights 20 people killed in suicide bombings

68 barrel bombs dropped on Daraya

First food aid delivery made in four years

(CNN) The Syrian regime has pounded the besieged city of Daraya with barrel bombs, just hours after food aid was delivered to the area for the first time in almost four years, officials and monitors said.

The London-based Syrian Observatory for Human Rights said that at least 68 barrel bombs were dropped on Daraya on Friday as agencies delivered food rations to the city on the brink of starvation.

This comes as the United States is leading airstrikes targeting ISIS extremists. The regime is bombing cities and towns trying to break away from government control, including the very groups armed by the United States to fight ISIS.

The bombardment and fresh twin suicide attacks on Saturday are chilling reminders of the lack of progress in the conflict, which has raged now for almost five years, causing hundreds of thousands of deaths, the destruction of towns and mass displacements.

At least 20 people were killed, including 13 civilians, and more than 30 people were wounded in twin suicide bombings outside the Shiite shrine of the Sayyida Zeinab in suburban Damascus area, according to the UK-based Syrian Observatory for Human Rights.