Borislav Mihaylov stepped down as president of the Bulgarian Football Union after the prime minister urged him to quit his post following racist abuse in the form of Nazi salutes and monkey chants from Bulgaria fans towards black England players during their Euro 2020 qualifier, which England won 6-0.
Prime Minister Boyko Borissov called earlier for former goalkeeper Mihaylov to step down after Monday's match was temporarily halted by the referee to tackle abuse from the crowd under a three-step protocol by European soccer governing body UEFA.
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Borissov has condemned the racist behavior of his country's soccer fans.
Borissov says "it is unacceptable that Bulgaria, one of the most tolerant countries in the world where people of different ethnicities live in peace, to be associated with racism and xenophobia."
Bulgarian fans have already been sanctioned for other racist abuse in qualifying for Euro 2020 and played the match against England on Monday in a partially closed stadium.
Anti-racism organization Kick It Out has criticized European football's governing body UEFA for failing to abandon Monday's Euro 2020 qualifier.
The game was twice halted in the first half, first when England manager Gareth Southgate informed the UEFA delegate about incidents and a public announcement was made.
The abuse continued and the Group A match was again temporarily suspended by the referee under a three-step UEFA protocol for tackling abuse.
Kick It Out said it was "sickened by the disgusting racist abuse" and suggested UEFA should have taken stronger action.
"We are encouraged that the protocol was initially enforced by the match officials, but UEFA must explain why players weren't sent to the dressing room during Step Two, as is clearly stated in the rules," a statement read.
"TV footage also clearly shows that racist abuse continued in the second half, so it is unacceptable that Step Three was not enforced. This match should have been abandoned by the officials.
"It's now time for UEFA to step up and show some leadership. For far too long, they have consistently failed to take effective action."
