Firefighters have attended a dozen incidents involving bins and rubbish which may have been started deliberately in St Helens in a fortnight.
Merseyside Fire and Rescue Service (MFRS) said there were 12 incidents in which wheelie bins or waste were set alight between June 1 and June 14.
In the same time period there were no fewer than 94 bin or rubbish fires across the county, 71 of them involving waste and 23 seeing wheelie bins set on fire.
The fire service suspects the blazes were started deliberately and has promised it will work with the police to bring those repsonsible to justice.
MFRS arson reduction co-ordinator Ian Mullen said: “Wheelie bin fires can easily spread to buildings, posing a danger to people inside and can cause significant damage to properties.
“Fires involving rubbish can spread rapidly and can be unpredictable due to the waste materials involved.
“If a fire appliance is called out to a deliberate fire, this could also delay the response to other emergencies.
“The fires that we attend are investigated and people should be aware it is a criminal offense to deliberately set fires. We work with the police and partner agencies to identify those responsible for setting fires and if caught they will be prosecuted.”
MFRS wants residents to store bins away from homes and only put them out on the street on collection days.
Information about deliberate fires should be reported to Merseyside Police on 101.