PM may not reroute $2.2b for Vic rail loop

PM Anthony Albanese (left) has declared funding for a Melbourne rail loop can't be spent elsewhere. (Joel Carrett/AAP PHOTOS) (AAP)

More than $2 billion in funding for Melbourne's Suburban Rail Loop may not be rerouted to health by the federal government if state opposition wins the upcoming election.

Before the May national poll, Prime Minister Anthony Albanese announced an initial $2.2 billion federal commitment towards funding the 90-kilometre orbital rail line running from Cheltenham to Werribee via Melbourne Airport.