This article is from the source 'bbc' and was first published or seen on . It last changed over 40 days ago and won't be checked again for changes.

You can find the current article at its original source at http://www.bbc.co.uk/news/uk-england-somerset-19340785#sa-ns_mchannel=rss&ns_source=PublicRSS20-sa

The article has changed 4 times. There is an RSS feed of changes available.

Version 2 Version 3
Dylan Cecil: Sonar to help in search off Somerset coast Dylan Cecil: Sonar team fails to find body off Burnham coast
(40 minutes later)
Specialist sonar equipment has been used in an attempt to find the body of a boy missing off the Somerset coast. A specialist rescue team using sonar equipment and an underwater robot has failed to find the body of Dylan Cecil.
Dylan Cecil, four, fell from the jetty at Burnham-on-Sea on Sunday evening, prompting a large search operation. The four-year-old boy has been missing since he fell from the jetty at Burnham-on-Sea on Sunday evening, prompting a large search operation.
UK rescue organisation SARbot spent a day scouring the water but was unable to find anything significant. UK rescue organisation SARbot has spent a day scouring the water but was unable to find anything significant.
The charity, which also used an underwater robot, said its sonar was more sensitive than those used by police. The charity's attempt comes after coastguards called off their search on Monday afternoon.
Duncan Winsbury, chief executive of SARbot, said: "We have developed the sonar at such a high frequency that it can actually see people under water. Duncan Winsbury, chief executive of SARbot, said: "We've just completed the search and have searched the whole bay and we've not found anything.
Converted sound waves 'No false hope'
"We're using a side-scan sonar. It sends out a beam of about 30 - 50m on each side so we can cover quite a big area. "We believe that the currents may have taken him right out to sea now, he's certainly not in the bay.
"Depth and water clarity doesn't matter, because it's actually sound waves converted to a picture for us. "The police, the coastguard and the RNLI think that we have searched much more than they could have expected to have been searched and more thoroughly.
"We have to draw on local knowledge in these areas, using the police, coastguard, RNLI and their knowledge of tides, such as where debris ends up and things like that." "We don't give people false hope, but we like to give people hope where we can.
"Unfortunately in this case, it's the old saying 'We can't find what is not there'."
Dylan, from Kettering, Northamptonshire, had been staying in Burnham with his grandparents.Dylan, from Kettering, Northamptonshire, had been staying in Burnham with his grandparents.
He fell into the sea when he and his parents were walking near the shore.He fell into the sea when he and his parents were walking near the shore.
His mother and father jumped in to rescue him and had to be pulled to safety.His mother and father jumped in to rescue him and had to be pulled to safety.
A huge search involving the coastguard, police and helicopters was mounted to rescue Dylan but the operation was called off on Monday.A huge search involving the coastguard, police and helicopters was mounted to rescue Dylan but the operation was called off on Monday.
However, volunteers continued to scour the area on Tuesday.However, volunteers continued to scour the area on Tuesday.