A Human Rights Watch report says there is evidence that cluster bombs were dropped on at least two locations in Libya.

The report released Sunday says it's not possible to determine who dropped the bombs. But it points out that the Libyan Air Force recently bombed the two locations, the towns of Bin Jawad and Sirte, although it has denied using the banned weapons.

Cluster munitions explode haphazardly and are a threat to civilians.

The report says the bombing sites were found this month and last month, and appear to have been dropped recently.

Libya has collapsed into chaos following the ouster of longtime autocrat Moammar Gadhafi in 2011. Two rival governments and parliaments — each backed by different militias — rule opposite sides of the country.