Regulatory authorities in Hungary and Turkey have banned internet giants Ladbrokes, Bwin.party and Bet365 from doing business in their countries.
The Hungary ban was imposed as punishment for operating in the country without official permission.
According to the Worldbulletin.net news portal, the two countries have been working together for several years to block unlicensed online gambling.
The Turkish National Lottery and domestic telecommunications authority TIB have joined forces to block access to 110 gambling web sites in the last five years out of 440 targeted.
The country outlawed land-based gambling back in 1997.
