After the blasts, reports by authorities said 29 people were killed in the first blast and seven in the second.

However, according to China Daily the Jilin provincial government said on Sunday that another seven deaths from the first gas explosion on March 29 were deliberately not reported by the coal mine.

According to an official with the provincial government, coal mine officials lied about the number of deaths after the first blast before a whistle-blower reported it to provincial authorities.

The primary Chinese watchdog, The State Council, will launch a full investigation into the blasts, according to China Daily.

State Administration of Work Safety director Yang Dongliang will lead the investigation team and vows to bring those responsible to justice.

A list of seven dead rescue workers and miners who were concealed from the initial report has been released and mine managers have been detained.

The State Administration of Work Safety has separate penalties for accidents that cause fewer or greater than 30 deaths.

So far, 42 deaths have been reported in the two blasts. There are still 11 people missing from the second blast on April 2.

Authorities are still trying to extinguish the coal fire inside the mine, which started after the second blast.

The 15 injured miners and rescue workers in the two blasts were in stable condition, the provincial government told China Daily.

The Babao mine is operated by state group Tonghua Mining in the northeastern province of Jilin.

An official for Tonghua Mining told Agence France Presse that the two blasts occurred in the same mine but he did not respond when asked why the mine had remained open after the first explosion.

The two gas blasts are the sixth and seventh coal mine accidents in China to cause at least 10 deaths this year, according to the State Administration of Work Safety.