Police will continue to search the Leschenault Estuary in the hunt for more explosive materials and clues to the two suspicious packages of chemicals found in the area last week.
Investigations are continuing into the highly volatile explosives in the packages discovered near Australind jetty.
This afternoon, a police spokesman said there was no evidence to suggest there were "more volatile objects" in the area, WA Police would continue a broader search tomorrow "as part of our thorough, methodical approach to ensuring the local community is safe from any danger".
"Anyone intending on travelling within the estuary area is reminded to exercise caution and follow the directions of police officers at all times," the police spokesman said.
Over the weekend, police carried out a highly visible presence in the Australind area, with additional resources from Perth deployed in Australind today, including traffic officers, police horses and police dogs.
The first package – located on Tuesday - was found to contain the same explosives used in the London bombings, as well as wiring for a homemade bomb.
Police detonated the package a dramatic operation at Gloucester Park on Wednesday.
The second package, believed to be the same explosives, was located on Thursday and destroyed by navy personnel on Friday.
"A highly visible presence has been maintained in the Australind area this weekend, with additional resources from Perth deployed in Australind today, including traffic officers, police horses and police dogs," police said today.
State Crime acting commander Scott Higgins said yesterday the area around where the explosives were located was searched by police and believed to be safe.
He said members of the public should remain vigilant and report any suspicious activity to police.
“Throughout this process we have ensured that the public’s safety has been paramount, and residents in Australind will continue to see a high level police presence in their community as additional officers remain in the community conducting the investigation,” he said.
“We thank those members of the community who have provided information and we urge anyone who hadn’t yet contacted us and believe they may have information to come forward.
“While the intent of the person who placed the objects there is yet to be determined, they clearly had a disregard for the safety of other members of the community.”
Australind Jetty has been reopened to the public.