A group of runaway pigs held up traffic for five hours after they escaped from a lorry taking them to a slaughterhouse.
Some of the animals also used the time of their brief freedom to mate right on the expressway.
The pigs made their bid for freedom after their truck crashed into another vehicle on the side of the highway in Ikeda, western Japan.
Out of the 37 animals on the truck, 19 tried to escape.
A video filmed from a passing car shows the pigs casually trotting up and down the hard shoulder while others laze and sniff about on the verge.
Police officers spent five hours trying to ensure the pigs did not stray into oncoming traffic.
Japanese media reported that none of the pigs were harmed in either the crash or the capture process,
They were eventually rounded up by police.
