Sky News reports that Gibb was hit, while trying to save the lives of people involved in a three-vehicle collision on the M6 highway.

The second officer survived the hit, and is in a critical, but stable condition.

Jim O'Sullivan, chief executive at Highways England, has released a statement on the incident.

"Our thoughts are with the family, friends, and colleagues of the two Highways England traffic officers who were involved in this terrible incident.

The police are carrying out an investigation and we are assisting them in any way that we can.

Everyone at Highways England has been deeply affected by this incident and we would ask that the privacy of those closest to the officers is respected at this difficult time."

Gibb's family has also issued a statement: " was a fantastic dad and a wonderful husband and will be deeply missed.

"He enjoyed mountain biking, fell running and walking on the fells with our dogs. Adam loved his job and really enjoyed being part of the team there."