Updates for Friday, 13 January 2017
Despite severe flood warnings for areas along the Suffolk coast, most places avoid flooding
Environment Agency says a change in wind direction helped avert flooding
Some local flooding, including at The Harbour Inn, Southwold
The pilot of the F-15C Eagle which crashed in the North Sea has been located, "and confirmed deceased", a spokesperson for RAF Lakenheath has said.
John Healey, the Shadow Defence Secretary and a Labour MP in South Yorkshire has tweeted, external: "We hope the pilot is found swiftly and safely, and our thoughts are with the pilot’s family, friends and all at RAF Lakenheath.
"Thanks to the coastguard for their efforts."
Image source, AFPThe RAF have also tweeted, external: "Our thoughts are with US Air Force and all at RAF Lakenheath."
The West Suffolk NHS Foundation Trust, which runs the general hospital in Bury St Edmunds, about 15 miles from RAF Lakenheath, has tweeted its support for the local USAF community.
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The coastguard says it is continuing to coordinate searches off Flamborough Head
A coastguard helicopter is working with other aircraft in the area, while the RNLI lifeboats from Bridlington and Scarborough continue to assist with the search along with other vessels.
Earlier, wreckage from the F-15C was found but the pilot has yet to be located.
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The F-15C which crashed today was from the 48th Fighter Wing which is based at RAF Lakenheath.
Image source, AFPThe 48th Fighter Wing has operated from there since 1960 and has more than 4,500 active-duty military members.
Image source, AFPJets were seen taking off and landing from the base throughout the day.
Image source, AFPSearch and rescue teams have located the aircraft but are still searching for the pilot 74 nautical miles off the Flamborough Head on the East Yorkshire coast.
Jonathan Beale
BBC defence correspondent
When a fast jet pilots ejects from an aircraft that normally activates a personal location beacon attached to the life jacket.
It's still not known whether the pilot managed to eject.
Jonathan Beale
BBC defence correspondent
Search and rescue teams have found aircraft wreckage close to the reported crash site of the US Air Force jet that crashed this morning.
But they are still continuing the search for the pilot.
Paul Murphy
BBC Look North
A marine traffic app shows at least 10 vessels in search and rescue mode searching around the crash region.
Image source, Getty ImagesThe plane cashed 74 nautical miles off Flamborough Head on the East Yorkshire Coast
One is a Siemens offshore accommodation ship based Grimsby and the search area is roughly 25 sq miles.
BBC Look North reporter Caroline Bilton has updated us on the search for a missing US fighter jet pilot off Flamborough Head in East Yorkshire.
The F-15C Eagle, from the 48th Fighter Wing at RAF Lakenheath in Suffolk, crashed shortly after 09:30 BST while on a training mission.
BBC Look East's Richard Daniel reports live from RAF Lakenheath as the search for a US fighter pilot off the Yorkshire coast continues.
Colonel Will Marshall said efforts to locate a US airman off the UK coast were ongoing.
Read MoreA USAF spokesman said he was "hopeful" search teams would be able to "locate and recover" a pilot who went missing after his jet crashed into the North Sea.
The F-15C aircraft, which went into the water 74 nautical miles off the East Yorkshire coast, was from the 48th Fighter Wing at RAF Lakenheath in Suffolk.
Colonel Will Marshall said the cause of the crash, which occurred during a training mission, was unknown.
He also praised UK counterparts for their help in the search.
Earlier this month, the F-15s based at RAF Lakenheath had been part of a display to mark the 76th anniversary of D-Day.
This post on the 48th Fighter Wing's Instagram page shows four jets performing a "missing man formation" over the beaches of Normandy.
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The 48th Fighter Wing also performed the missing man formation as part of a flypast for the 75th anniversary of the Mi Amigo US bomber crash in Sheffield.
On its website,, external the US Air Force says the F-15 Eagle - the type of jet which has crashed in the North Sea - is an "all-weather, extremely maneuverable, tactical fighter designed to permit the Air Force to gain and maintain air supremacy over the battlefield".
This YouTube footage celebrates some "great sounding" F-15 jets at the US base.
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An area of north-west Suffolk largely reliant on the custom of those occupying the US military bases at its heart - RAF Lakenheath, Mildenhall and Feltwell - is often known as "Little America".
In the past seven decades, tens of thousands of US military personnel, their spouses and their children have set up home in this Suffolk enclave for postings lasting between two and four years.
There is no defined border for "Little America" - arriving there is mostly signalled by a preponderance of large, American cars and signs bearing the Stars and Stripes.
Many businesses in the area also accept payment in dollars.
At RAF Lakenheath there are about 5,500 active-duty military members and 2,700 British and US civilians working on base
The United States Air Force claims RAF Lakenheath and Mildenhall are worth a combined £700m ($910m) to the local economy.
Laurence Cawley
BBC News
Days like today are the ones everybody at RAF Lakenheath fears the most.
Six years ago an F15 went into a tail spin before crashing into the ground close to homes in Western Hills, Lincolnshire. The base commander at the time told me how his primary fears were the safety of UK citizens, the safety of his air crew and the USAF’s relationship with its host country.
Many would be surprised at just how unlike USAF pilots are to the characters portrayed in films like Top Gun.
The changing rooms before a training mission are intensely serious places, with pilots quietly ruminating on every last detail of the flight ahead.
A short walk from the changing area is a room called "the vault".
"The vault holds all the classified information those with clearance need to piece together exactly what happened during a particular flight or mission,” the then commander told me.
That's where all of the voice, sensor data and display recordings will be. It will be from this same vault that the exact cause of today’s crash will emerge.