New Delhi, March 13 -- The United Nations agency for Palestinian refugees said one of its staff members was killed on Wednesday in an Israeli strike on a food distribution centre in war-hit Gaza. "At least one UNRWA staff member was killed and another 22 were injured when Israeli forces hit a food distribution centre in the eastern part of Rafah" in southern Gaza, the agency said in a statement. The Israeli military did not immediately respond to AFP's request for comment. The health ministry in the Hamas-run Gaza Strip had earlier said four people were killed in the "bombing of the warehouse". Wednesday's incident comes amid mounting concern about worsening humanitarian conditions in Gaza, where Israel has carried out military operations s...