Information Minister Maung Maung Ohn also announced that 4,589 people were injured and 221 others were missing, state television MRTV reported.

The death toll from Myanmar's devastating earthquake has surpassed 3,000, with hundreds more missing, as forecasts of unseasonal rain presented a new challenge for rescue and aid workers trying to reach people in a country riven by civil war.

Rescue workers, sniffer dogs, paramedics and millions of dollars in aid have begun arriving in Myanmar after a massive earthquake ravaged much of the war-torn country.

Myanmar's military rulers have kept journalists out since the devastating earthquake, so CBS News' partners at the BBC went undercover to reveal the scale of the disaster.

A U.S. team has yet to arrive in Myanmar after last week’s 7.7-magnitude earthquake, while China has already rescued six people and committed $14 million in humanitarian aid.

Extreme heat and heavy rain in Myanmar could cause disease outbreaks among earthquake survivors camping in the open, global aid bodies warned on Thursday.

A 5.1-magnitude aftershock hit near Mandalay on Sunday, following the 7.7 quake on Friday that has killed more than 1,600 people.

A government spokesman told state-run MRTV that another 3,400 have been injured and more than 300 were missing.

A 7.7 magnitude earthquake rattled much of Southeast Asia on Friday, flattening skyscrapers and leaving more than 1,000 people dead from Myanmar to Thailand.