Postmen are refusing to deliver letters to an Essex street following a series of attacks.
The Royal Mail has suspended deliveries to Vermont Close, Felmores, Basildon, to protect staff where one postman was drenched with urine, it said.
A spokesman said police had been informed of the problem and attempts were being made to find a solution.
Families in the street have to collect mail from the Basildon sorting office while the ban is in place.
The spokesman said: "Obviously it is an unusual move for us not to deliver to a street, but in this case we felt we had no option.
"We have taken the decision to suspend deliveries to Vermont Close because we have to protect our staff.
"Our staff have reported that they have been attacked - on one occasion one postman was drenched in urine.
"Attacks on our postmen and women do happen and when they do we will take action - we will not put them at risk."
An Essex Police spokesman said officers were investigating complaints about attacks.