Bulgarian clubs CSKA Sofia and Lokomotiv Plovdiv have both been ordered to play two matches behind closed doors after crowd trouble at their league match on Sunday, the Bulgarian Football Union (BFU) said on Monday.

Fighting between rival fans forced the referee to halt Sunday's match in Plovdiv for nearly 20 minutes. CSKA, who are second in the Bulgarian league table, won the game 1-0.

Players tried to step in to prevent the violence but were ignored when pleading with their fans as belts, bottles and flares were all used as weapons.

CSKA, one of the two most popular clubs in the Balkan country alongside Sofia rivals Levski, were also fined 14,300 leva (£6,531.78) and Lokomotiv were fined 14,000 leva (£6,394.75), the BFU said.

The CSKA fixtures affected by the ruling will be their homes games against Septemvri Sofia on Thursday and Beroe Stara Zagora on December 10.

Lokomotiv will play behind closed doors when they host Vereya next month and Pirin Blagoevgrad in February.