Taiwanese President Ma Ying-jeou, center, speaks to a victim injured in an accidental explosion during a music concert, as he visits a local hospital in New Taipei City, Taiwan, Sunday, June 28, 2015.

Taiwan’s Central News Agency today reported 474 have been injured, including 141 in serious condition.

The national news agency CNA reported that 13 of the injured were foreign nationals, including two each from mainland China and Japan, one from Macau, one from Malaysia and another from Singapore.

“They will be transferred to prosecutors for further investigation on charges of offences against public safety and negligence of duties that caused severe injuries”, said New Taipei police spokesman Yen Po-ren.

Bystanders had to improvise to carry the large number of wounded people to get medical attention.

The fire was sparked after a flammable powder ignited above a crowd at the water park, according to emergency workers quoted by state news agency CNA.

It wasn’t clear if the colored powder was part of a performance. “The most urgent matter presently for us is to handle and assist with… victims on the scene and work comprehensively with the New Taipei Fire Department”, Formosa Fun Coast said in a statement.

“Our initial understanding is this explosion and fire… was caused by the powder spray”.

498 people attending the “Color Play Asia” party at Formosa Water Park were reportedly injured.

The fire was quickly extinguished, officials said.

It’s believed the blaze was caused by an explosion of a colored theatrical powder sprayed on the crowds.

Based on a video of the disaster, a massive fireball suddenly engulfed the stage and people started screaming and ran away from the fire.

Lee said that details of the ages of the victims were not yet available, “but all looked very young, in their 20s or even younger”.

The Foreign Ministry through the Malaysian Friendship and Trade Centre in Taipei, is trying to gather more information from the local authorities on the incident.

More than 200 people were injured in northern Taiwan on Saturday, after fire broke out in a recreational park.

“The next 24 hours will be critical for those severely injured”.

Five people including event manager Lu Chung-chi have already been detained by police, and the water park has been temporarily closed.

Most of the victims suffer over 50 percent burn area on body, and have inhaled large sum of black carbon dust, said the health department.