The UK port of Felixstowe is coming under heavy criticism from freight forwarders due to congestion and delays.
The British International Freight Association (BIFA) labelled service at the Hutchison Ports terminal "appalling".
The group said its members could not send empty boxes to the port until 23 September.
BIFA director general Robert Keen added: "The operational performance at Felixstowe has been very challenging for some time, but over the last 24 hours the issues have escalated to a level that could be disastrous for our members’ businesses, which have already been hard hit by the impact of the Covid-19 pandemic."