Arsonists have been spotted lighting new fires near Bolton even though a huge moor fire is continuing to burn, Sky News has been told.

It is "absolutely heartbreaking and unbelievable", Tony Crook from Lancashire Fire and Rescue Service said.

The perpetrators are putting "yourselves at risk, your community at risk, and also putting emergency workers at risk", Mr Crook added.

In a further message for them, he said: "You will get caught, and you will get dealt with."

A week-long battle against the flames was declared a major incident on Saturday.