A protest in Austria on Saturday against noise and pollution is set to close one of Europe's most important highways connecting Germany and Italy, potentially causing major traffic disruptions.
Communities in Austria's western Tyrol province have long complained about traffic, especially trucks passing over the Brenner Pass and through the province.
The highway links northern and southern Europe, with the Austrian stretch providing trans-Alpine access into Italy.
To make space for Saturday's rally, authorities are closing part of the highway and surrounding roads to all transit traffic from 11:00am local time (0900 GMT) to 7:00pm.
Austria's motoring club OeAMTC has warned of the possibility of "extensive traffic jams" and advised drivers to avoid travelling through Tyrol that day.
