"The United States condemns in the strongest possible terms today's attack, which led to the killing of two Israeli soldiers and the apparent abduction of another. It was an outrageous violation of the ceasefire negotiated over the past several days, and of the assurances given to the United States and the United Nations," US Secretary of State John Kerry said.
"Hamas, which has security control over the Gaza Strip, must immediately and unconditionally release the missing Israeli soldier, and I call on those with influence over Hamas to reinforce this message," he said in a statement
Kerry said he has been in close touch with Israeli Prime Minister Benjamin Netanyahu, UN Special Coordinator Robert Serry and with other regional partners over the developments.
"The international community must now redouble its efforts to end the tunnel and rocket attacks by Hamas terrorists on Israel and the suffering and loss of civilian life," he said.
Meanwhile, White House Deputy National Security Advisor Tony Blinken told the MSNBC, "This appears to be an absolutely outrageous action by Hamas, using the cover of a ceasefire to conduct a surprise attack through a tunnel, killing Israeli soldiers, and perhaps taking one hostage."
The humanitarian ceasefire -- brokered by the US and the UN to end more than three weeks of fighting between Israel and Palestinian militant groups in the Gaza Strip -- collapsed just two hours after it began this morning.
Artillery shelling by Israeli in the southern Rafah area today killed at least 50 people, taking the Palestinian death toll to 1,509, mostly civilians, Gaza health officials said.
Israel and Hamas have blamed each other for the collapse of the fragile ceasefire.
Blinken said countries like Turkey and Qatar who have influence over Hamas need to use it to bring peace in the region.
