The number of people wounded in the explosion at an Ariana Grande concert in England, increased to 119 on Wednesday, double the number initially reported, Manchester health officials said.

Officials said the number was raised because of the "walking wounded" who came in seeking medical treatment hours after a bomb detonated at Manchester Arena on Monday, killing 22 people.

MANCHESTER POLICE MAKE 3 MORE ARRESTS, AS UK TERROR LEVEL REMAINS AT CRITICAL

Sixty four people were still hospitalized two days after the blast, Jon Rouse, of the Greater Manchester Health and Social Care Partnership, said.

Rouse added many of those hospitalized had serious wounds that would require "very long term care and support in terms of their recovery." Officials said on Tuesday that 12 children under the age 16 received "serious injuries."

Among the 22 people killed were girls ages 8, 15 and 18.

ARIANA GRANDE CONCERT ATTACK: FIRST VICTIMS IN MANCHESTER BLAST IDENTIFIED

Authorities in Manchester made three more arrests in connection with Monday's explosion. Salman Abedi, 22, was named the attacker and officials said they believe they are investigating a "network."

UK Prime Minister Theresa May raised Britain's threat level to "critical," saying that another attack may be imminent.