AN ISRAELI drone strike on a clinic in northern Gaza, where children were being vaccinated for polio, has wounded six people — including four children.

The World Health Organisation (WHO) said the attack occurred early Saturday afternoon in northern Gaza, which has been sounded by Israeli forces and largely isolated for the past year.

Gaza Health Ministry director general Dr Munir al-Boursh said that a quadcopter struck the Sheikh Radwan clinic in Gaza City, just a few minutes after a United Nations delegation left the facility.