The man who has fought to find WPC Yvonne Fletcher's killer has told ITV News he is demanding answers after new details of Libyan warnings.
UK authorities will be allowed to question Gaddafi's former spy chief over the Lockerbie bombing, Libya's Justice Minister told ITV News.
Post-Gaddafi, competing factions of armed militias make a joke of the idea of Libya as a united or stable country. It is anything but.
A group of UK nationals has left Libya on a French boat following the escalation in violence between rival militias in and around the capital, Tripoli.
"A small group of British nationals left Tripoli this morning on board a French frigate," a Foreign Office spokesperson said.
"Our advice remains that British nationals should leave by commercial means still available, and we are monitoring the situation and keeping our advice under constant review."
A rocket attack on fuel tanks near Tripoli airport in Libya has caused a huge "out of control" fire as clashes between rival militias intensified.
"It is out of control. The second tank has been hit and the firefighters have withdrawn from the site as the fighting has resumed in the area", the National Oil Company Mohamed Al-Harrai told Reuters.
Libya has asked for international help after an oil depot caught fire amid clashes over the country's international airport in Tripoli.
The country's interim government said in a statement posted on its website that the fighting between rival militias caused the blaze, which could trigger a "humanitarian and environmental disaster."
It appealed for "international help" but did not specify what sort of help it wants.
Libyan TV stations called on residents to evacuate areas within a three-mile radius of the airport. Many Libyan families responded to the call and scrambled to leave their homes.
At least 36 people were killed during the weekend's clashes between Libyan Special Forces and Islamist militants in Benghazi, security officials said.
The government said more than 150 people have died, many of them civilian, in the capital Tripoli and Benghazi in two weeks of fighting as clashes forced UK and other foreign diplomats to pull out of the country.
France and Germany have joined Britain in calling on their citizens in Libya to leave the country amid the worst violence since the war that brought the overthrow of Colonel Gaddafi in 2011.
The United States evacuated its embassy in Libya yesterday with diplomats driven across the border into Tunisia under heavy military escort after rising trouble in Tripoli.
A British Embassy convoy came under fire during an attempted carjacking in Libya according to Michael Aron, the UK's ambassador to the country.
.@mwattinleebi There was an attempted carjacking of a British Embassy convoy this morning. Shots were fired at our vehicles but all safe.
Embassy staff escaped unscathed from the attack which occurred this morning.
The Foreign and Commonwealth Office (FCO) recently updated its travel advice to state: "British nationals in Libya should leave now by commercial means."
Britons living in Libya should leave the country immediately because of the "greater intensity of fighting," the Foreign and Commonwealth Office (FCO) has warned.
The department warned that violent clashes between armed groups are possible across the country, including in the country's capital Tripoli, particularly at night.
They said: "Fighting can break out in many places and at short notice. It can become serious quickly putting those in the area at risk. You should remain vigilant at all times."
They added: "Keep a low profile and try to limit travelling around as much as possible, particularly at night. There is a high threat from crime."
There are believed to be between 100 and 300 Britons in the north African country.
Tripoli International Airport was closed a fortnight ago following clashes between armed groups nearby, but any Britons remaining should use "commercial means" to leave, they said.
The British Embassy remains open but with reduced staff and a limited ability to provide consular assistance.
The US embassy staff evacuated from Tripoli travelled to Tunisia by land with security staff.
The State Department said there were no incidents during the move, which was provoked by nearby militia clashes.
The US state department has evacuated its embassy staff from Tripoli, the capital of Libya, due to security concerns.
It comes after worsening clashes between rival militias in the city, which has killed and wounded dozens and has centred around Tripoli airport.
Clashes between rival militias at Libya's main international airport have turned the main terminal building into a field hospital and damaged 11 passenger jets and the control tower.
At least 15 people have died in the past two days in the Libyan capital and Benghazi, where forces loyal to a former ally of Colonel Gaddafi attacked Islamist militia bases.
The fighting has forced flights to be suspended and left Libya cut off from the rest of the world.
Tripoli's airport area is controlled by former fighters from the western town of Zintan, who have come under attack by rival militias in recent days.
The battles have prompted the United Nations to evacuate its staff from Libya, where the government is struggling to maintain control over the country.
An official said that the control tower at the airport would need replacement equipment to be imported before it can re-open.