"The acts of violence in the Parliament are wholly unacceptable and we call for calm and restraint," the statement reads.
The EU officials called on Macedonia's Interior Ministry and the police to ensure the security of the Parliament and its members.
"Democracy must run its course," Mogherini and Hahn said. "We take positive note of the election of Talat Xhaferi as Speaker of the Parliament, as reported."
The EU "is convinced that political dialogue in the institutions is the only way forward," urging all political actors in Macedonia to honor the Constitution of the country and "act in the spirit of democratic principles, decency and common sense."
As UNIAN reported earlier, on Thursday, April 27, protesters stormed into Macedonia's parliament and assaulted the leader of the Social Democrats on Thursday after his party and ethnic Albanian allies voted to elect an Albanian as parliament speaker.