OTTAWA - Federal officials will hold an emergency meeting Friday to discuss the isotope crisis.

Liberal MPs requested the meeting which spokesman Geoff Regan says will involve discussions with nuclear medicine specialists and provincial health ministers.

The committee also hopes to hear from Atomic Energy of Canada Ltd., and medical isotope distributor MDS Nordion.

Regan says the natural resources committee last met in June and that much has happened since then.

Isotopes have been in short supply since a leaking nuclear reactor in Chalk River, Ont., was shut down last May.

The closure has led to a worldwide shortage of medical isotopes which are used in diagnostic imaging and in certain cardiac and cancer treatments.