Hundreds of people were seen running towards the trucks as they crossed into Gaza from Egypt, and several videos showed Gazans climbing up and throwing aid to those on the ground.
"The Commission supports Israel's right to defend itself against the Hamas terrorists, in full respect of international humanitarian law," the EU executive said in a statement.
Qatar halted periodic payments of some $7 million from the Gulf to Gaza for the civil servants' salaries some three months ago, as per a local report.
Many people in surrounding villages say they are surviving off donations from local charities and have received little or no help from the central state authorities.
Palestinian leaders have been reticent about all such deals after having been taken by surprise by the 2020 Abraham Accords.
Anti armour weaponry will be supplied to Ukraine in the new deal.