The Bulgarian National Radio

Greek air traffic controllers abandoned plans for a relay strike called off after a meeting with the country's Transport Minister, Greek daily Kathimerini reports.

Flights to or from Greece would have been halted for four days (October 9-10, 12-13) if the controllers had proceeded with their action.

Russian Patriarch Kiril is due to travel to Bulgaria's capital Sofia in February of next year, Russian church officials have said.

The Bulgarian National Radio quotes him as saying that an invitation has already been extended to Kiril by his Bulgarian counterpart, Neofit.

The vehicle used by the attackers who fired at ex-security agent Alexei Petrov using grenade launchers has been found, police say.

Reports suggest the car was found near the site of the incident.

The attackers are still being sought.

A grenade launcher has been used near the home of an ex-security agent immediately next to the central area of Bulgaria's capital Sofia, officials have confirmed.

It is unclear whether the attack was targeting Alexei Petrov himself, a former employee of national security agency DANS widely suspected of having ties to the criminal underworld.

Nationalist ATAKA party leader Volen Siderov and MP Desislav Chukolov took part in a brawl with the owners of a tobacco and alcohol shop, media outlets report.

Police have confirmed the incident which occurred late on Friday evening in downtown Sofia's Rakovski Street, but does not confirm the names of lawmakers involved.

20 people were arrested Monday evening during a protest in Sofia's Orlandovtsi district.

On Saturday, clashes that erupted between Bulgarians and Roma over loud music left six people injured.

On Sunday, around 200 Bulgarians staged a protest in the residential district.