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| Dylan Cecil: Sonar to help in search off Somerset coast | |
| (about 2 hours later) | |
| Specialist sonar equipment has been used in an attempt to find the body of a boy missing off the Somerset coast. | |
| Dylan Cecil, four, fell from the jetty at Burnham-on-Sea on Sunday evening, prompting a large search operation. | Dylan Cecil, four, 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. | |
| The charity, which also used an underwater robot, said its sonar was more sensitive than those used by police. | |
| 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 have developed the sonar at such a high frequency that it can actually see people under water. |
| Converted sound waves | Converted sound waves |
| "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'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. |
| "Depth and water clarity doesn't matter, because it's actually sound waves converted to a picture for us. | "Depth and water clarity doesn't matter, because it's actually sound waves converted to a picture for us. |
| "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." | |
| 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. |