Prague  - The European Union Thursday repeated its call for an immediate ceasefire in the Middle East after a UN driver bringing aid to Gaza was killed in Israeli fire.

"This is another gruesome incident after a UN-administered school was hit," Czech Foreign Minister Karel Schwarzenberg, whose country chairs the EU until June 30, said in a statement.

"We are repeating our call: it is impossible to delay a ceasefire," he said.

The United Nations said that a driver bringing humanitarian supplies from the northern crossing point of the Gaza Strip into the territory was killed when Israeli forces fired upon his convoy. (dpa)