A center managed by "one of the UN agencies in Tripoli," was repeatedly targeted this week by "deeply aggressive acts against staff and the people accessing humanitarian services," the UN said.

The UN did not specify which of its agencies was attacked. However, the statement came after videos on social media showed people breaking into the premises of the International Organization for Migration (IOM) in Tripoli, damaging the furniture and driving the occupants away.

In an online post, the UN acknowledged "the actions taken by relevant authorities to respond to the incidents" and investigate them, saying that such attacks "must not be repeated."

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Tripoli government warns against 'vandalism'

Separately, Libya's Foreign Ministry warned against attacking international organizations, including UN agencies and diplomatic missions in the country.

"Freedom of expression and peaceful protest do not, under any circumstances, justify intrusion, vandalism, threats, or endangering the safety of persons," the ministry said in a statement cited by the AFP news agency.

Libya has been struggling with civil war, rival governments, criminal gangs and smuggling networks since the collapse of the Muammar Gaddafi regime in 2011.

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Protesters calling for expelling UN staff

With the violence subsiding, migrants became a focus of the public debate in recent months, with many voices alleging plans to settle migrants permanently in the country. In late July, the Benghazi-based eastern Libyan authorities announced they have deported 117,350 irregular migrants of various nationalities in accordance with a new immigration policy.

The row has seen protesters blocking UN agencies such as the IOM and the UN High Commissioner for Refugees (UNHCR). The protesters are calling for such international facilities to be closed and their staff ousted from the North African country.

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