The head of Hamas’s political leadership, Ismail Haniyeh, said an Israeli airstrike killed three of his sons on Wednesday, the first day of the Muslim holiday of Eid-al-Fitr, an attack that could complicate a U.S.-led plan for a cease-fire in the six-month-old conflict in Gaza.

The Israeli military didn’t immediately comment on the statement.

Hamas said five people died in the strike, which the group said hit a car making social visits for Eid, the holiday marking the end of the holy month of Ramadan.

Haniyeh, in a separate statement, said some of his grandchildren also died.... Read More: WSJ