Updated

Police are raiding the offices of a news portal searching for clues about how journalists obtained a recording of a phone conversation that said the governing Bosnian Serb party allegedly bribed two opposition lawmakers to win their votes in parliament.

Irfan Nefic, a police spokesman, says the raid underway Monday was ordered by a Sarajevo court.

In an October election, the governing Independent Social Democrats narrowly maintained their majority in the parliament of the Bosnian Serb autonomous region.

Prior to the vote, the portal Klix.ba posted a recording of a conversation during which Zeljka Cvijanovic, a top Independent Social Democrats official, allegedly says her party had paid two opposition lawmakers to ensure its majority.

Cvijanovic, who narrowly became regional prime minister after that election, claims the recording is a fabrication.