The IDF says Hamas was using the schools as command centers and hiding places.
As the Israel-Hamas war continues, tensions are escalating after the assassinations of two Hamas and Hezbollah leaders this week.
The U.S. Central Command Forces said it struck and destroyed one Iranian-backed Houthi land attack cruise missile in Yemen.
"It was determined the LACM presented an imminent threat to U.S. and coalition forces, and merchant vessels in the region. These actions were taken to protect freedom of navigation and make international waters safer and more secure," CENTCOM said in a statement Saturday.
-ABC News' Shannon K. Kingston
The U.S. embassy in Beirut has issued a warning to U.S. citizens in Lebanon "who wish to depart Lebanon to book any ticket available to them." The embassy warned those who choose not to leave to "prepare contingency plans for emergency situations and be prepared to shelter in place for an extended period of time."
"The U.S. Embassy notes several airlines have suspended or cancelled flights, and many flights have sold out; however, commercial transportation options to leave Lebanon remain available. Please see available flight options at Beirut–Rafic Hariri International Airport," the embassy said.
"U.S. citizens who lack funds to return to the United States may contact the embassy for financial assistance via repatriation loans," the embassy said.
At least 10 Palestinians have been killed after the Israeli Defense Forces conducted an airstrike on a school in Gaza City on Saturday, claiming it was being used as a "command and control" center by Hamas.
Gaza civil defense said they are having trouble reaching victims because of continuing bombardment of the school.
U.S. Defense Secretary Lloyd Austin will direct "multiple" force posture changes in the Middle East to protect U.S. troops and help defend Israel, Pentagon deputy press secretary Sabrina Singh said during a briefing Friday.
"As we've demonstrated since October and again in April, the United States' global defense is dynamic, and the department retains the capability to deploy on short notice to meet evolving national security threats," Singh said.
"As a result, the secretary will be directing multiple forthcoming force posture moves to bolster force protection for U.S. forces region wide, to provide elevated support to the defense of Israel, and to ensure the United States is prepared to respond to this evolving crisis. In terms of what specifics that means, I don't have that for you right now," Singh said.
When asked for details on when and what types of forces would be moved where, Singh said these will be decided by Austin, implying that specific orders have not yet been issued.
-ABC News' Matt Seyler
