Colonel Gaddafi's son has warned of civil war in Libya, as anti-government protests spread to Tripoli.
Speaking from the Libyan capital, an un-named protester told Today presenter John Humphrys that people were staying indoors in the daytime, because it would be easy to shoot them in the daylight.
He said 3 to 4,000 people took part in the protests over night, but that people are "scared to come out at the moment, because they're not sure".
"We are not giving up," he added.
Reporting from Egypt, correspondent Jon Leyne said he believed a message was spreading through Libya that this was a "do or die" moment for the country.
There would be "fearful retribution", he commented, if Gaddafi is not removed from power. But "the tide is working against" the dictator. "It's really hard to see how he could survive this."
And former Foreign Office minister Lord Malloch-Brown told the programme that unrest in the country was "long overdue".
"I wish this had happened years ago," he added.
The unrest in Libya since 17 February has left 233 people dead, including 60 in a single day in the country's second city Benghazi, according to the organisation Human Rights Watch, with reports that the security forces have been firing on protesters.
But Lord Trefgarne, Chairman of the Libyan British Business Council, said it was unlikely that the weapons involved had been provided by British companies. He explained that "very strict" licensing rules meant that "very little of that nature as far as I know has been exported" to the Tripoli regime.
Get in touch with Today via
or text us on 84844.