TORONTO - Prince Edward Island and Manitoba are teaming up with Ontario to help develop a plan to improve retirement income security.

The provinces say they're disappointed with the federal government's unilateral decision to shut down discussions on enhancing the Canada Pension Plan.

Ontario Premier Kathleen Wynne met Wednesday with P.E.I. Premier Robert Ghiz to discuss options to enhance retirement income security.

Wynne says P.E.I. and Manitoba are joining Ontario's Technical Advisory Group on Retirement Security to explore the most effective alternatives to a CPP enhancement.

Former prime minister Paul Martin is acting as Ontario's special adviser, while P.E.I. will be represented by former P.E.I. executive council clerk Sandy Stewart, and former provincial deputy finance minister Ewald Boschman will represent Manitoba.

Ontario officials note that many Canadians, including middle-income earners, may not be saving enough to ensure a good standard of living in retirement.