An investigation, Op Retinta, has been launched by Surrey Police following seven suspected arson offences across the Reigate and Banstead borough in one month.
Two men have been arrested and released on bail.
Five of the offences took place at sports clubs or grounds, prompting speculation that the fires were linked. Surrey Police warned all local sports clubs and people who live near them to 'be on their guard.'
The first fire took place at Horley Lawn Tennis Club on June 22. It was followed by fires at Churchfields Bowls Club (June 26), Old Reigatian Rugby Club (June 28 and July 12), Massetts Road, Horley (July 2), Reigate Town Hall (July 11) and Oakwood Sports Centre (July 21).
A Horley man in his 20s who was arrested in connection with the offences has been released on police bail.
Senior Investigating Officer Detective Chief Inspector Antony Archibald, said: “I am confident this latest arrest is a positive step forward in our investigation. However, I understand that releasing a suspect on police bail can leave people doubtful but sometimes this course of action must be taken to allow further inquiries to be carried out.
“I would like to reassure members of the Reigate and Banstead community that we will continue deploying large numbers of officers to the affected areas to help prevent further occurrences.
“A dedicated team of detectives supported by officers from East Surrey will continue to investigate these thoughtless crimes and I urge anyone who can assist to contact police as a matter of urgency.
“Surrey Police continues to work closely with Surrey Fire and Rescue Service and Reigate and Banstead Borough Council to support victims and the wider community.”
Reigate and Banstead Neighbourhood Inspector Andy Rundle, said: “The Reigate and Banstead community have given police and the fire service huge support throughout this investigation and for this I must thank them.
“The community has pulled together and looked out for one another through this tough time and I hope this will continue until we have brought those responsible to justice for their offences.”
The man has been released on police bail until Wednesday, 24 September while the investigation continues. A man in his 40s from Epsom is also on police bail until Thursday, 21 August.
Anyone who can assist with the investigation is urged to contact Surrey Police on 101 quoting Operation Retinta. The independent charity Crimestoppers can be contacted anonymously on 0800 555 111 and information passed directly to them which leads to the arrest and conviction may be eligible for a reward of up to £2,000. If you would like advise on how to protect your property from arson contact the Arson Task Force provided by Surrey Fire and Rescue Service on 01737 733680.