Foreign Secretary Philip Hammond has welcomed the news of a 72-hour ceasefire in Gaza, but stressed the need to "redouble efforts" to bring about a lasting solution.
In a statement, Mr Hammond said the truce was "an achievement we have all been working tirelessly for".
But he added: "We should now redouble our efforts and leave no stone unturned to ensure this is a lasting and durable ceasefire to make way for substantial discussions to resolve the underlying issues on both sides."
The news was also hailed by former prime minister Tony Blair, who said there must be a "new and hopeful future for both sides".
There have been two days of quiet in Gaza. No rockets or missiles, no more destroyed houses, no more ambulance sirens screaming.
A three-year-old girl has been rescued from Gaza and brought to London for life-saving heart surgery.
A small team of NHS doctors and surgeons is travel to Gaza to set up facilities and establish how best to use specialists and equipment.