A man who tried to make his own fireworks has been arrested on suspicion of possessing explosives.
The 48-year-old of Canvey Island, Essex, was arrested after officers carried out an "assessment of the scene" at his home.
Chief Inspector Glen Westley of Castle Point police said there is no threat to the public or any links to terrorism.
He said: "We do not believe it is a terrorism incident. We think he has been trying to make his own fireworks."
The man is in custody awaiting questioning.
Bonfires and firework displays are being held this weekend despite claims that a four day strike by firefighters is leaving many people 'vulnerable'.
Firefighters across the country have walked out from 6pm on Friday until 6pm on Tuesday in a dispute about pensions.
The Fire Brigade Union says government proposals that firefighters should work until they are 60 instead of 55, pay more into their pensions and get less in retirement, are unfair.
But the Fire Service says contingency plans are in place and there is adequate cover.