The attack happened at around 3.50am this morning in Trafalgar Street, Brighton.
Sussex Police said a man was taken to hospital with “significant injuries”.
Officers are searching the area and the force said people can ‘expect to see a heightened police presence while enquiries are ongoing’
Anyone with any information is asked to report it online or via 101 quoting 162 of 09/10.
Officers are searching the area and the force said people can ‘expect to see a heightened police presence while enquiries are ongoing’
![In Pictures: Sussex city street cordoned off as police attend 'serious incident'](https://www.sussexexpress.co.uk/webimg/b25lY21zOjIxOWI2MDY3LTVkZTUtNGZjZC1iNWM0LTM2ODZhN2VlZGNjMTpiNTBmNzQ2Ni0yMWU5LTQxZjktOTQxOS0zNGI2NzYwZTE0NGM=.jpg?crop=3:2&width=800)
5. In Pictures: Sussex city street cordoned off as police attend 'serious incident'
In Pictures: Sussex city street cordoned off as police attend 'serious incident' Photo: Eddie Mitchell
![In Pictures: Sussex city street cordoned off as police attend 'serious incident'](https://www.sussexexpress.co.uk/webimg/b25lY21zOjkyMTFhNzI1LWQ5OWQtNDM4Yy1hYTkyLWExZjhlZTkxNjA2NDozODJhOWE3MC00ZjhkLTRkYTgtOTM4ZS1iNjE3Yzc2NzYwMDM=.jpg?crop=3:2&width=800)
6. In Pictures: Sussex city street cordoned off as police attend 'serious incident'
In Pictures: Sussex city street cordoned off as police attend 'serious incident' Photo: Eddie Mitchell