Farmers, in particular, blocked the roads to the port area of Hamburg and the ports on the north coast - Wilhelmshaven and Bremerhaven.
In Germany, hundreds of farmers protesting government plans to cut subsidies to the agricultural sector have blocked access to the country's key ports with machinery.
About 100 tractors were deployed on strategic roads leading to Hamburg's port area, disrupting operations at Europe's largest container transshipment hub.
According to the police, about 1,500 tractors obstructed traffic in Hamburg.
The ports on Germany's northern coast of Wilhelmshaven and Bremerhaven were also blocked by protesters. Bremerhaven police said they are negotiating with farmers to secure access to the port.
Farmer protests in Germany began at the end of 2023. They oppose the government's plans to cancel subsidies for the agricultural sector.
The country's government, under the pressure of protests, has partially abandoned spending cuts on social programs and promised to restore the transport tax discount and phase out diesel subsidies.