Foreign Secretary David Lammy has urged British nationals to heed the government's advice and leave Lebanon immediately.
He said the situation on the ground is "fast moving" and ministers can't guarantee being able to help "if things escalate in a major way over the coming hours and days".
Israel-Hezbollah latest: Next phase of war to begin soon
There are concerns about rising violence in the Middle East after Hezbollah leader Hassan Nasrallah was killed in Israeli airstrikes on Beirut.
The militant group responded by saying it is ready to fight should Israel launch a ground offensive, with fears mounting that the escalating hostilities could result in a full-scale regional war.
Mr Lammy said the government had set up a rapid response unit to help the estimated 5,000 British citizens in Lebanon, with 700 troops stationed in Cyprus and seats booked on commercial flights to bring them home.
He told reporters on Monday night: "I have been urging since coming to office in July for British nationals to leave Lebanon. And indeed the previous government from October 2023 was urging UK nationals not to travel to Lebanon.
"Notwithstanding that we sent a rapid response team. 700 troops are in Cyprus. We will do all we can to assist people to get out. We have secured places on commercial flights that are flying tomorrow so that UK nationals can get out."
Mr Lammy urged British citizens in Lebanon to make use of this help immediately, saying the government might not be able to protect them if the conflict escalates.
Asked what he would say to British nationals who have not yet taken his advice, he said: "I urge them to leave because the situation on the ground is fast moving
"While we will do everything we can to protect British nationals and those plans are in place to do so, we cannot anticipate the circumstances of the speed with which we could do that If things escalate in a major way over the coming hours and days."
Keep up with all the latest news from the UK and around the world by following Sky News
Tap hereIt emerged today that Israeli special forces are conducting probing operations inside Lebanon, ahead of a potential ground assault.
Earlier on Monday, Israel's defence minister Yoav Gallant warned "the next stage in the war against Hezbollah will begin soon".
Mr Lammy said he spoke to US Secretary of State Antony Blinken this evening and they are both "concerned" about the comments and are urging de-escalation.
Read More:
Is wider war in the Middle East now inevitable?
Iran seems to have badly miscalculated the risks Israel are willing to take
Asked if military aid could be sent to Israel if it is attacked by Iran, which backs Hezbollah, the cabinet minister said he met with the Iranian foreign minister last week "and we had a detailed discussion and of course, I was urging Iran to show restraint".
"As you would expect over the coming hours, we will continue to be in touch with Iran," he added.
👉 Click to subscribe to the Sky News Daily wherever you get your podcasts 👈
On whether he agrees with US President Joe Biden that the killing of Hassan Nasrallah was a "measure of justice", he said: "I don't mourn the death of the head of a proscribed terrorist organisation, but I do mourn the civilians who have lost their lives in the bloodshed over the last few days."
Disclaimer: The copyright of this article belongs to the original author. Reposting this article is solely for the purpose of information dissemination and does not constitute any investment advice. If there is any infringement, please contact us immediately. We will make corrections or deletions as necessary. Thank you.
