REHOBOTH BEACH, Del. (AP) — President Joe Biden is cutting short a weekend stay at his Delaware beach house and returning to the White House on Saturday to meet with his national security team and monitor the situation in the Middle East ahead of a feared Iranian attack against Israel.

Tensions are at their highest since the Israel-Hamas war began six months ago after a suspected Israeli strike this month on an Iranian consular building in Syria killed 12 people, including two senior Iranian generals in the Revolutionary Guard’s elite Quds Force. Iran has promised to retaliate against Israel, and U.S. and Israeli officials have been bracing for an attack as soon as this weekend, raising concerns about the conflict escalating into a wider regional war.

The Pentagon reported that Defense Secretary Lloyd Austin had spoken with his Israeli counterpart “to discuss urgent regional threats ... and made clear that Israel could count on full U.S. support to defend Israel against any attacks by Iran and its regional proxies.” National security adviser Jake Sullivan also spoke with his counterpart to reinforce Washington’s “ironclad commitment to the security of Israel.”