The Prime Minister has been to the East today to see for himself the impact of last week's storm.
Families left homeless in Norfolk after last week's tidal surge have described how community support has helped them through the ordeal.
David Cameron surveyed the extent of the flood damage as he visited a town hit by last week's tidal surge.
An area of beach at Hemsby in Norfolk has been cordoned off this morning following the discovery of what is believed to be an unexploded mortar.
Officers were contacted at around 8:15am after the item was found about 500 yards away from the lifeboat station.
Personnel from the Explosive Ordnance Disposal (EOD) team have been contacted.
Homes left hanging on the edge of a Norfolk coastline following this month's tidal surge will be demolished by Christmas. Great Yarmouth Borough Council say four homes will be knocked down. The council say one of the homes was also found to contain asbestos.
The council say they hope to recover the costs of the work through Government schemes.
Thieves have stolen belongings salvaged from a home which fell into the sea after a tidal surge hit the east coast.
Three homes were destroyed and four others "seriously undermined" as waves ravaged the village of Hemsby in Norfolk on Thursday night.
But while residents formed human chains and battled to save whatever possessions they could as the homes slipped over the cliff edge, suspects made off with valuables which had been rescued.
Norfolk Police said the offenders struck at some point between 10pm on Thursday and 11.30am on Sunday.
A police spokesman said: "They entered the shed on The Marrams and removed a carrier bag of items that had been saved from a bungalow falling into the sea.
"Items taken include a gold necklace, three watches, a digital camera and a camcorder.
"There were many members of the public in the area offering assistance over the course of the weekend and officers would like to hear from anyone who may have seen any suspicious activity around the bungalow or adjacent sheds at the time of the incident."
– David Cameron
"I think you can always do more, so here we are with a flood that was bigger than 1953, but with many fewer homes flooded - even though of course we built lots of homes in flood plains since then.
"So, I think the figure is had there been no flood defences you could have seen 800,000 homes flooded. So there's always more that can be done.
"There's always more flood defences that can be put in place, the funding is there but you can't always protect everything."
The Prime Minister has been paying a visit to North Norfolk this morning to see for himself the extent of last week's flood damage.
David Cameron visited Wells-next-the-Sea and spoke to residents whose properties were damaged in the tidal surge. He also thanked the emergency services for their work.
Sea defences managed to prevent the devastation seen further down the coast at Hemsby and Walcott but he insisted that more needed to be done and lessons had to be learnt
David Cameron surveyed the extent of the flood damage in north Norfolk today as he visited a town hit by last week's tidal surge.
The Prime Minister met residents of Wells-next-the-Sea whose properties were damaged as the tide reached the highest level on record.
Mr Cameron paid tribute to the emergency services and flood wardens for their response, but said more could be done.
He said: "These were terrible floods and it was a very difficult event but the resilience of people here in Norfolk must be praised."
Charlie Hall, Deputy Chief Constable of Norfolk Police, said that in places the waters exceeded the levels seen in the storm surge of 1953:
In places, water levels were higher than those experienced in the flooding of 1953, when many people lost their lives.
Thankfully that has not been the case on this occasion, a combination of improved defences in place and the concerted efforts of the community, the emergency services and the agencies that have worked to support the evacuation and keep people informed.