Shocking footage shows the moment a grocery shop exploded in a ball of flames leaving two men hospitalised with burn injuries.

Emergency services rushed to Bob Shop in Alum Rock, Birmingham, after a blaze tore through the store at around 1am this morning (Wed).

Dramatic video captured the fire taking hold inside before several loud explosions send flames shooting from the shop frontage.

One man suffered serious burns as he tried to escape the inferno and was rushed to Birmingham's Queen Elizabeth Hospital for specialist care.

A second male victim suffered less serious burns and was taken to the city's Heartlands Hospital for treatment.

A West Midlands Ambulance Service spokesperson said: "We were called to Alum Rock Road, Birmingham at 0.59am this morning (Wed) to reports of a building fire. "

"Two ambulances and a paramedic officer attended the scene. Crews treated two men on scene. "

"One man sustained serious injuries in the fire and was conveyed on blue lights to Queen Elizabeth Hospital Birmingham for further specialist care."

"The second man suffered less serious injuries and was taken to Heartlands Hospital for further checks." "

West Midlands Fire Service said the cause of the blaze was accidental and was sparked by an electrical fault.

A fire service spokesman said: "Two men freed themselves from the shop before we arrived. "

"They were treated by paramedics for burns and are believed to have been conveyed to Heartlands hospital for further treatment."

"Firefighters checked adjoining shops for fire spread using thermal imaging cameras but none was found. "

"This fire started accidentally due to an electrical fault."

"Crews damped down and left the scene at 3.38am with police colleagues assisting with traffic management."

West Midlands Police confirmed the blaze was not being treated as suspicious.