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(CNN) Taiwan's Ministry of Health and Welfare put out a call for medical supplies and skin grafts for the hundreds injured after flammable powder exploded in midair at a recreational water park, Taiwanese media reported.

By late Sunday, no fatalities had been reported, and the total number of injuries had dropped to 498, according to Taiwan's Central News Agency, which cited New Taipei's Public Health Department. The department said some of the injured were inadvertently counted twice in its previous tally of 524.

Forty-three hospitals are treating casualties, CNA reported, and 202 of the victims are in critical condition.

Photos: Photos: Taiwanese President Ma Ying-jeou shakes hands with a victim on June 28, 2015. The New Taipei City fire department says 200 people were injured in an accidental explosion of colored theatrical powder Saturday night near a performance stage where about 1,000 people were gathered for party. Hide Caption 1 of 7 Photos: Rescue workers tend to injured people at the Formosa Fun Coast amusement park after an explosion in the Pali district of New Taipei City on June 27, 2015. Hide Caption 2 of 7 Photos: A man carries an injured victim from an accidental explosion during a music concert at the Formosa Water Park in New Taipei City, Taiwan, on June 27. Hide Caption 3 of 7 Photos: Concert spectators tend to injured victims after an accidental explosion during a music concert at the Formosa Water Park in New Taipei City, Taiwan, on June 27. Hide Caption 4 of 7 Photos: Two men walk at the explosion site of the water park in the Pali district, in New Taipei City, on June 28. Hide Caption 5 of 7 Photos: Emergency rescue workers and concert spectators tend to injured victims from an explosion during a music concert at the Formosa Water Park in New Taipei City, Taiwan, on June 27. Hide Caption 6 of 7 Photos: A picture taken on June 27 shows the Formosa Fun Coast amusement park after an explosion in the Pali district of New Taipei City. Hide Caption 7 of 7

Most of the victims, 485 of them, are Taiwanese, but 13 foreigners were also injured, CNA said. The majority of injured foreigners are female. They include residents of Hong Kong, mainland China, Japan, Singapore and Malaysia.

Though the New Taipei government said the nationalities of three of the victims had not yet been confirmed, it was reported earlier that a "European or American" man was among the wounded.

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