The number of people killed in three days of protests in Libya has risen to 84, according to the New York-based group Human Rights Watch.
The main focus of the demonstrations against Col Muammar Gaddafi's 42-year rule has been the second city Benghazi, where security forces are said to have attacked protesters again on Saturday.
On Friday, one hospital in the city reported 35 deaths.
State media have warned of retaliation if the unrest continues.
Media restrictions make it difficult to verify reports independently but the BBC has confirmed that websites including Facebook and al-Jazeera Arabic were blocked.
Security forces opened fire in Benghazi on Friday when protesters approached a compound used by Col Gaddafi when he visits the city, which is about 1,000 km (600 miles) from the capital Tripoli, eyewitnesses say. BBC News
