An Athens prosecutor summoned businessman and former Olympiacos chairman Sokratis Kokkalis, shipping magnate Andreas Martinos and Government Spokesperson Sofia Voultepsi to testify as part of the preliminary investigation into claims that lawmakers were being bribed ahead of the Greek presidential election.

Greece’s supreme court ordered the investigation after main opposition Syriza spokesman Panos Skourletis cited a press report that claimed business friends of the Prime Minister had  ‘brought out their piggy banks to raise money’ to bribe lawmakers for their support in the government’s bid to secure the 180 votes necessary to elect Greece’s next president in February.

According to Kontra News, the ‘piggy banks’ and the bribery of lawmakers had been discussed during a wedding reception held by the children of Kokkalis and Martinos.

Independent Greeks leader Panos Kammenos appeared before the prosecutor on Friday. Kammenos has asked for the opening of MP bank accounts.

The election of the president is made in the 300-seat parliament. If parliament fails to reach a consensus, it is dissolved and general elections are called.