Seventy-three residents are still unable to return to their homes in East Sussex following the discovery of explosive chemicals in a St Leonards property.
The evacuation began after police were called to the A259 Marina road in the seaside town on Thursday.
A 28-year-old man has been arrested on suspicion of producing illegal substances and making an explosive substance for an unlawful purpose.
A major incident was declared on Friday as operations continued to make the chemicals safe while a 100-metre cordon has remained in place around the affected area.
The team is now conducting a thorough search of the property for any further hazardous material
PA
The multi-agency operation has continued as teams work to safely resolve the incident.
On Friday afternoon, the explosive ordnance disposal (EOD) team desensitised the chemicals found in the property on the A259 Marina.
The team is now conducting a thorough search of the property for any further hazardous material.
A Sussex Police spokesman said: "The scene is not safe until this search has been completed in full and this will continue into tomorrow."
He added that public safety remains their priority during the operation.
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Officials have not yet provided a timeline for when residents might be able to return to their homes, although they have promised to allow them to return as soon as it is deemed safe.
"We understand how unsettling it is for the 73 people displaced but thank the public for their patience and understanding," said the police spokesman.
Authorities continue to liaise with Hastings Borough Council at the rest centre, which has been established at Royal Victoria Hotel.
The displaced residents have been unable to return since Thursday when the chemicals were first discovered.
PA
Chief Inspector James Scott said: "We appreciate there has been a degree of uncertainty but this is a live incident and we are updating people as we have the information," he said.
"Keeping people safe remains our priority."
Police have confirmed the chemicals are not part of any large-scale drugs production nor is the incident believed to be terror-related, according to officials.
Uncertainty remains regarding the Hastings Half Marathon, which is scheduled to run on Sunday along the affected road.
Sussex Police have promised to provide an update on the race as soon as possible.
