"The Israeli bombardments on Gaza intensified last night and once again targeted women, children and innocent civilians and worsened the ongoing humanitarian crisis," Erdogan said on X, formerly Twitter.
A near-total blackout of internet and cellphone service has taken hold across much of the Gaza Strip, according to witnesses there and companies that monitor global connectivity.
The Palestinian militant group that rules Gaza had said its fighters were clashing with Israeli troops in areas near the border with Israel after Israel reported intensified attacks in Gaza.