David Cameron met the Middle East peace envoy Tony Blair at the British consulate in Jerusalem.
The two spoke for 20 minutes, discussing the peace process.
Asked whether missile attacks could knock the plan off track, Mr Blair said: "The strikes from Gaza just underline and illustrate the depth of the problem.
More top news
Ashley Yates, 45, used a spy pen hidden inside school bathrooms to film pupils at a primary school.
Joshua Clements stabbed two 19-year-olds while 4,000 people were gathered at the royal park.
The vessel was spotted off the Kent coast at around 5.40am on Thursday.