Two men have been arrested under the Terrorism Act 2006 in Bristol.

Britol, UK - At 10pm on Wednesday July 18 a man was arrested in the Castle Park area of Bristol on suspicion of drugs-related offences.

Following that arrest, police conducted a search of an address in Stapleton Road.

During that search police found a substance has led them to believe there may be a potential link to terrorist activity and a further thorough search has been initiated.

The substance will need to be the subject of a full forensic analysis.

The man, of Afghan origin. has therefore also been arrested under the Terrorist Act 2006 and is being held at a police station in the Avon and Somerset force area.

Further investigations have led to the arrest of a second man.

Our top priority is public safety and while this incident does not involve a specific threat to anybody, police are undertaking an extensive investigation.

Officers have been speaking to community leaders in the Stapleton Road area to provide information and reassurance.

Assistant Chief Constable Steve Mortimore said: "This investigation is in its very early stages and we hope to clarify the situation at the earliest possible opportunity.

"Our message to the public for some time now has been that while we don't want people to be unduly afraid, everyone should be aware of the potential risks and be vigilant.

"The police activity is strong reassurance to our communities that Avon and Somerset Police will swiftly and effectively act upon any potential risk to public safety.

"We always endeavor to keep disruption to local people to a minimum and we appreciate the community's co-operation."

He added: "Since this situation developed on Wednesday night, we have actively engaged with the local community.

"And I am delighted with the positive response and support we have received from local people.

"I would like to thank the community for that continued support."

Source: Avon and Somerset Constabulary website