Specialist river search teams are using Coastguard boats and a hovercraft to search the River Dyfi. People are searching the edges and banks of the river in kayaks and on foot.
These aerial shots, taken from a helicopter, show the scale of the search operation:
Detectives investigating the abduction of April Jones have until this afternoon to charge or release murder suspect Mark Bridger.
New photographs of missing five-year-old April Jones have been released by her family, as the search for her continues.
Police have been granted an additional 24 hours to question April Jones murder suspect Mark Bridger.