A serious incident has occurred at the Big Church Festival in West Sussex after a sign reportedly fell and injured a number of people.

South East Coast Ambulance Service (SECAmb) said it was called to Wiston Park, Steyning, shortly after 3.30pm and confirmed at least six patients.

Ambulance crews, critical care paramedics and specialist response teams are at the scene alongside other emergency services.

Sussex Police said officers were called at around 3.38pm following “reports of a sign having fallen and injured a number of people at the site in Washington Road”.

Police remain at the scene assisting other emergency services and have warned of possible traffic disruption in the area.

Attendees have meanwhile been told to return to their tents or remain in the main arena.

“We've been told that the site is on lockdown, with people not allowed to get in or out,” said Premier's James Lewis, who is at the festival.

A safety announcement displayed on the big screen at the main stage reads:

“Due to circumstances beyond our control, the show has been stopped. Any campers please head back to the campsite immediately. Any non-campers please remain in the main arena.”

GOD TV's broadcast from the festival has also been suspended.

Police said they had no further information at this stage but would provide updates when available.

This is a breaking story. We will update with more details as we get them.