train services between Norwich and London have been cancelled as heat-related speed restrictions are put in place. Picture: ANTONY KELLY (Image: Archant Norfolk 2015)
A 'trespass incident' has caused delays to people travelling from Norwich to Cambridge by train this morning.
Train operator Greater Anglia said services between both cities had been cancelled as police deal with the incident.
It is understood that it took place on the A146 bridge over the railway line in Trowse, south of Norwich.
In a Twitter post, the company said disruption is expected until 8am.
• Updates to follow
Comments: Our rules
We want our comments to be a lively and valuable part of our community - a place where readers can debate and engage with the most important local issues. The ability to comment on our stories is a privilege, not a right, however, and that privilege may be withdrawn if it is abused or misused.
Please report any comments that break our rules.
Read the rules here