An investigation is underway to find out how 52 trailer units ended up on fire last night in Peterbrough, requiring more than 50 firefighters to extinguish the blaze.

Five teenagers have been arrested on suspicion of arson following a blaze at Hotpoint in Peterborough which saw 48 trailers go up in flames, causing around £2million worth of damage. Picture: CAMBS FIREFive teenagers have been arrested on suspicion of arson following a blaze at Hotpoint in Peterborough which saw 48 trailers go up in flames, causing around £2million worth of damage. Picture: CAMBS FIRE

Crews were called to the site of the former Pedigree Petfoods site at the rear of Hotpoint on Shrewsbury Avenue at around 6.57pm.

Temporary road closures were put in place in Shrewsbury Avenue, Morley Way and Celta Road up to the junction with the A15.

There were no casualties.

Five teenagers have been arrested on suspicion of arson following a blaze at Hotpoint in Peterborough which saw 48 trailers go up in flames, causing around £2million worth of damage. Picture: HARRY GOODMAN.Five teenagers have been arrested on suspicion of arson following a blaze at Hotpoint in Peterborough which saw 48 trailers go up in flames, causing around £2million worth of damage. Picture: HARRY GOODMAN.

Members of the public were urged to avoid the area and local residents are advised to keep doors and windows closed.

Crews from Whittlesey, Dogsthorpe, Stanground, Yaxley, March, Sawtry, Wisbech attended the incident, along with a crew from Spalding, Lincolnshire Fire and Rescue Service.

The incident command unit from Huntingdon, water carrier from Ramsey, HVP supported by firefighters from Papworth and Gamlingay, a water carrier from Newmarket, Suffolk Fire and Rescue Service, the incident support unit from St Neots and a water carrier from Fakenham, Norfolk Fire and Rescue Service also attended.

Five teenagers have been arrested on suspicion of arson following a blaze at Hotpoint in Peterborough which saw 48 trailers go up in flames, causing around £2million worth of damage.Five teenagers have been arrested on suspicion of arson following a blaze at Hotpoint in Peterborough which saw 48 trailers go up in flames, causing around £2million worth of damage.

Police and ambulance crews were also in attendance.

The cause of the fire is under investigation.

Five teenagers have been arrested on suspicion of arson following a blaze at Hotpoint in Peterborough which saw 48 trailers go up in flames, causing around £2million worth of damage.Five teenagers have been arrested on suspicion of arson following a blaze at Hotpoint in Peterborough which saw 48 trailers go up in flames, causing around £2million worth of damage.

Five teenagers have been arrested on suspicion of arson following a blaze at Hotpoint in Peterborough which saw 48 trailers go up in flames, causing around £2million worth of damage. Picture: HARRY GOODMANFive teenagers have been arrested on suspicion of arson following a blaze at Hotpoint in Peterborough which saw 48 trailers go up in flames, causing around £2million worth of damage. Picture: HARRY GOODMAN

Investigation underway to find out how 52 trailer units ended up on fire last night (August 29) at the former Pedigree Petfoods site at the rear of Hotpoint on Shrewsbury Avenue in Peterbrough. More than 50 firefighters were called to the scene to help extinguish the blaze. Picture: HARRY GOODMAN,Investigation underway to find out how 52 trailer units ended up on fire last night (August 29) at the former Pedigree Petfoods site at the rear of Hotpoint on Shrewsbury Avenue in Peterbrough. More than 50 firefighters were called to the scene to help extinguish the blaze. Picture: HARRY GOODMAN,