The United Nations said it will resume aid convoys within Syria after an attack on a convoy killed 20 people and prompted a temporary suspension.

Jens Laerke, the spokesman for the U.N. humanitarian aid agency, said Wednesday that "several" convoys are expected as early as Thursday, but didn't specify where. He said the convoys would not go to Aleppo.

An attack on Monday night in Aleppo province on a warehouse of the Red Crescent where U.N. aid was delivered that day killed 20 people and destroyed most of the delivery.

In response, the U.N. suspended overland aid operations to priority areas in Syria pending a full security assessment.

Laerke acknowledged that a full assessment had not been completed, but said the planned deliveries would take place now on a case-by-case basis.