Turkey’s Consulate in the Swiss city of Zurich was attacked by a Molotov cocktail in the early hours on April 22, said the Turkish consul serving there.
Asiye Nurcan Ipekci told Anadolu Agency that the attack came at 2.51 a.m. local time (0051GMT), but no one was hurt and the building suffered no damage.
She added that there were previous attacks on the consulate but this latest wasn't claimed by any group.
The police arrested three young people over the attack, she said, but had no further details about them.
Over the last two-and-a-half years, the Turkish Consulate has suffered from six attacks.
In May 2017, people wearing balaclavas vandalized the consulate with paints and wrote "Kill Erdogan" on a nearby bus stop and building.
In January 2018, an official car at the consulate was targeted by an arson attack.