A simulated, large-scale incident took place on the seafront between 6pm and 9pm.
These exercises are designed to build skills, confidence and teamwork needed to respond effectively in high-pressure situations, according to South East Coast Ambulance Service, which recently conducted several emergency simulations across Sussex.
A spokesperson for Littlehampton Coastguard Rescue Team said ‘you may see a large presence of emergency services personnel in and around the River Arun, Littlehampton’.
“HM Coastguard alongside the RNLI, Ambulance Service and other partner agencies will be conducting a large scale incident in the river,” the spokesperson said.
"We welcome people who want to watch the simulated incident, however for your safety we do ask that you remain clear of the area where we will be working.
"This will predominantly be the area around Arun Parade and the coastguard station.”
13. 'Large presence of emergency services' in Littlehampton explained
Residents watching the simulated incident Photo: Eddie Mitchell
14. 'Large presence of emergency services' in Littlehampton explained
HM Coastguard, the RNLI, SECAmb and 'other partner agencies' took part Photo: Eddie Mitchell
15. 'Large presence of emergency services' in Littlehampton explained
The training exercise took place in and around the River Arun, according to the Coastguard Photo: Eddie Mitchell