The Australian radio hosts behind a hoax phone call to the British hospital where the pregnant Duchess of Cambridge was staying said through tears that they were shattered upon learning that the nurse who was duped by their prank had died.

2DayFM radio DJs Mel Greig and Michael Christian have faced worldwide outrage over the hoax. They spoke publicly about the prank for the first time Monday in a televised interview with Australia's "A Current Affair."

Nurse Jacintha Saldanha answered the phone last week when the pair called, impersonating Queen Elizabeth II and Prince Charles. They received and broadcast confidential information about the duchess's medical condition.

Saldanha died three days later. The cause is not yet known, but critics of the DJs assume stress from the prank played a role.

COULD IT HAPPEN IN THE U.S?

(LOCAL 4) U.S. Federal Communications Commission rules require callers to be told, in advance, when they are “on-air”. One radio programmer told us you must state who you are and tell them you're airing their call. Still, there have been incidents in the United States of tragic consequences following radio pranks.

Local 4’s Guy Gordon talks to a national radio programmer at 6:15am on Local 4 News Morning.