- 11 updates
Foreign Office Minister Alistair Burt has condemned today's car bomb blast in the southern suburbs of Beirut, saying, "Terrorism and extremism have no place in Lebanon".
Mr Burt, the Foreign Office official in charge of Middle East policy, called for Lebanon to "investigate this urgently and bring the perpetrators to justice."
Outgoing Lebanese prime minister Najib Mikati has declared tomorrow a day of mourning for the victims of the attack.
Eyewitnesses said they did not realise what had happened when a bomb ripped through a Hezbollah stronghold in a southern suburb of Beirut.
"I don't know what happened", one man said. "It's as if we were struck by an earthquake."
An unnamed woman added, "I heard a huge explosion. It threw me several metres".
At least 20 people have been killed after an explosion struck a Hezbollah stronghold in southern Beirut today, Reuters reported, citing a security source.
The army said the cause of the explosion in Lebanon's capital was a car bomb.
The blast engulfed several vehicles in flames and trapped many people in nearby buildings that were damaged in the explosion.
A spokesman for Lebanon's Red Cross has said said that 10 people were killed and another 120 were wounded in the explosion in southern Beirut.
A previously unknown Islamist group has claimed responsibility for the explosion in southern Beirut in a video statement and said it had been targeting Hezbollah.
It also said that today's blast was its second operation and promised further strikes against Hezbollah.
Witnesses have told Reuters they have found nine bodies after a large explosion in the Lebanese capital Beirut.
The numbers of fatalities are likely to rise with reports on social media already suggesting the number is closer to 17.
Emergency service vehicles can be seen trying to negotiate the large crowds of people around the scene of the blast in southern Beirut in this video.
Large clouds of black smoke continue to billow from the blast epicentre and some of the surrounding buildings appear to be badly damaged.
Bystanders are helping to carry water hoses to the site of a large explosion in a southern suburb of Beirut where flames are still visible.
Fire trucks and ambulances are present at the scene.
Footage from a Lebanese news agency shows the aftermath of a large explosion in a southern suburb of Beirut.
A number of cars are still on fire but the scale of the damage to the Hezbollah building is not yet visible.
The death toll from an explosion at a Hezbollah stronghold in southern Beirut has risen to at least three with a further 20 people injured, the Lebanese state news agency reports.