Palestinians say Israel struck a Gaza clinic during a polio campaign. The army denies it

Palestinian officials say an Israeli drone strike on a clinic in northern Gaza where children were being vaccinated for polio wounded six people, including four children. The Israeli military denied responsibility. The alleged strike occurred Saturday in northern Gaza, which has been encircled by Israeli forces and largely isolated for the past year. Israel has been carrying out another offensive there in recent weeks that has killed hundreds of people and displaced tens of thousands. It was not possible to resolve the conflicting accounts.