Prime Minister Brian Mulroney's Conservative government was stung Friday by allegations from two of its own Quebec legislators that kickbacks are routine in the present administration.

The government said the accusations were unsubstantiated.The allegations from a disgruntled former Cabinet member and another Conservative member of Parliament were political fodder for the opposition parties because Mulroney is on the brink of calling a general election.

Polls show the opposition Liberal Party with a narrow overall lead, followed by the Conservatives and the socialist New Democratic Party.