- The coastguard said it was called to a "tragic incident" on West Mersea beach on Wednesday evening
- Essex Police has asked the public to avoid the Seaview Avenue and beach area
- There is a large emergency service presence at the scene, including the Coastguard, RNLI, air ambulances, police and fire services
- A Mersea and Pyefleet councillor said the incident highlighted "the dangers of tidal areas"
Emergency services respond to 'major incident' on Essex coast