The Department of Parks and Wildlife says a 2.6 metre crocodile, which was acting aggressively around Broome, has had to be destroyed.
The department has revealed the animal was actually shot on Friday, but it was not confirmed dead until its carcass was exposed by the tides yesterday.
Authorities say the decision was made because of the animal's behaviour, which closed Town Beach last week, and because of its reluctance to enter the traps.
District Wildlife Officer Peter Carstairs says shooting a crocodile is always the last resort.
"We've exhausted all of our options for management of this crocodile," he said.
The fact that it wouldn't go into our traps so we'd exhausted all of our options in trying to remove it.
"Shooting is very much a last option for us, we'd much prefer to trap and remove them that way and keep the animal alive.
"In the interests of public safety around Broome, the Dampier Creek system being right within the town limits, we had to remove this crocodile by shooting."
The trap will remain in Dampier Creek for a second, 3.5 metre crocodile and the Department warns it is still not safe to swim.