On Thursday, the U.N. Support Mission in Libya called for the immediate release of lawmaker Seham Sergiwa, who was abducted in mid-July by gunmen from her house in the eastern city of Benghazi — the Libyan National Army stronghold.
"We will continue to lift our voices to demand her release and that those responsible for her violent abduction be held accountable," the UNSMIL statement said.
Since her kidnapping, Libya's eastern authorities have failed to reveal her whereabouts.
The Tripoli-based government, as well as some members of her family, accused forces loyal to Khalifa Haftar, the LNA commander, of being behind the 56-year-old parliamentarian's disappearance.
Although a member of the east-based parliament known for its loyalty to Haftar, Sergiwa was a vocal critic of the Libyan National Army offensive on Tripoli.
In Thursday's statement, the UNSMIL condemned Sergiwa's kidnapping as an attempt "to silence one of Libya's prominent female voices and to intimidate other women seeking to participate in the country's political life."
Several rights groups have previously said that Libyan militias on all sides of the conflict have committed human rights abuses, including abducting activists, journalists and rights activists.