"Health facilities close to Tripoli have reported 47 people killed and 181 injured in recent days," the UN Health Body said, while the forces of Marshal Khalifa Hefter seek control of the Libyan capital.
The World Health Organization has warned that renewed conflict in a divided country since the overthrow of the Muammar Qazafi regime in 2011 also threatens to decrease medical supplies.
On Tuesday, the Libyan National Army carried out a second air strike on Tripoli International Airport, while its aircraft bombed a group of the National Accord government headed by Fayez al-Sarraj, backed by Turkey and Qatar, where fighting continues to impose control over Tripoli.
Field sources told Sky News Arabia that "a military aircraft of the Libyan National Army launched a raid on a position of militias at Tripoli International Airport."
The Libyan army began its advance towards Tripoli by taking control of the strategic areas of Warshvanah and Azizia, which are an important entry point towards the capital from the south-west, according to a military statement announced last Friday.
The Libyan National Army, led by Marshal Khalifa Hefter, launched its military operation to take control of Tripoli last week.