ROME, April 4 (Xinhua) -- Three suspects, including two politicians from the rightwing League party, have been arrested and 20 individuals are under investigation on suspicion of vote-buying in Sicily, Italian news agency ANSA reported Wednesday.

Investigators say they have evidence of at least 12 episodes of vote-buying in exchange for promises of jobs or other favors in the Sicilian city of Termini Imerese.

Those arrested were named as brothers Salvino and Mario Caputo, who are both from the anti-immigrant, euroskeptic League party that did very well in Italy's general election in early March and whose leader, Matteo Salvini, could become the next prime minister of Italy.

A third man, named as Benito Vercio, was arrested on suspicion of being a "procurer of votes," according to ANSA.

Among those being probed for vote-buying are two city cabinet members and a city librarian who was previously arrested for absenteeism.

The League is one of two relative winners of the March 4 election, along with the populist Five Star Movement.