Published: 07:58, 19 August 2019
| Updated: 15:46, 19 August 2019
People are continuing to search for six-year-old Lucas Dobson today.
Three adults jumped in after him but the current was too strong and they were unable to find him.
More than 300 people have been helping fire fighters, police officers and the coastugard with the search until late in to the evening.
A helicopter was spotted looking over Dover in the early hours of this morning, but police confirmed this was for a missing man who was found at 3am.
In their 5pm update yesterday, Kent Fire and Rescue Service called on volunteers to search bushes and banks and call out Lucas' name in case he was able to exit the water.
It is believed that message was repeated this morning when volunteers, in larger numbers, arrived.
Video: Sgt Colin Millins speaks to the volunteers as emergency services coordinate a search over the weekend
In their last update at 7.10pm, Kent Fire and Rescue Service said: "Emergency services, partner agencies, charities and members of the public have been working together as part of a coordinated search on land, along the river banks and in the water of the River Stour near Sandwich.
"The specialist and experienced search and rescue teams will continue their work until light prevents them tonight, however they will return first thing in the morning.
"The search teams have been inundated with support; from people helping to look for Lucas to donations of food, water and torches - Thank you."
The family have since released videos of him dancing on Snapchat before he went missing.
There are two zones that local people are helping with:
Zone 1 - From Castle Cottages heading upstream
Zone 2 - From the Toll Bridge towards the coast
Anyone who needs to report any details regarding the incident should call Kent Police on 101 or 999 in an emergency.
More by this authorAmy Nickalls