The European Union foreign policy chief, Federica Mogherini, called on all Libyan parties to respect the truce agreement in the capital Tripoli and to refrain from provocative rhetoric and statements.
"The truce agreement in Tripoli is fragile, but it is still there, and it must continue to be respected," she said in a speech to a session of the European Parliament held on Tuesday.
And called on all Libyan parties to stop feeding tensions and disagreements, not only through actions but also through statements, stressing that "Libya needs calm and not inflammatory rhetoric."
"The attack on the headquarters of the National Oil Corporation in Tripoli on Tuesday, as well as the attack on the headquarters of the National High Electoral Commission on May 2, is a direct result of instability in Libya, and undermines the ability of the state to serve the people of Libya."
With the latest round of clashes in Tripoli, Mogherini said she had immediately communicated with UN envoy Ghassan Salamé to renew EU support for his work, which contributed to the truce agreement, and renewed its commitment to provide urgent humanitarian support.