World Athletics announced on Wednesday that its Road Running Championships is to be moved from the US city of San Diego.
"Following detailed discussions between World Athletics and the local organising committee... it has been agreed that the World Athletics Road Running Championships will no longer be held in San Diego in September as planned," track and field's governing body said in a statement.
"World Athletics is currently talking to other potential hosts and expects to announce another location shortly."
The championships had been scheduled for 26-28 September.
Tracy Sundlun, CEO of the San Diego 25 local organising committee, said: "We really looked forward to welcoming the running world to San Diego this September but sadly it is not to be at this time.
"For now, all of us here on Team San Diego will do everything in our power to assist World Athletics in the seamless transition of the 2025 Championships to a new venue."