Parts of Croydon University Hospital have been evacuated of staff after a suspect package was discovered in nearby London Road.
Police have cordoned off the London Road entrance and exit to the hospital while they investigate the package, which they were called to just after 2.30pm.
Some staff areas at the hospital have been emptied, although there are no plans to move patients out at this stage.
Are you near Croydon University Hospital? Call Mike Didymus on 020 8722 6353, email pictures and video to mdidymus@london.newsquest.co.uk or tweet @Mike_Didymus.
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 The ability to comment on our stories is a privilege, not a right, however, and that privilege may be withdrawn if it is abused or misused.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