Police are hunting for more suspects after a soldier was shot dead and the suspected gunman also shot dead in the Canadian parliament during several shooting attacks in the city.
A man jumped the White House fence on Wednesday and was attacked by Secret Service dogs, a Secret Service spokesman said.
"Dogs got him," the spokesman told Reuters, referring to the intruder.
Video showed Secret Service agents surrounding the man on the north lawn of the White House, which was put on lockdown.
Fake goats cheese made from sheep's milk has been found on sale in supermarkets following a shortage of milk from the animals.
Consumer group Which? commissioned tests on 76 goats cheese samples from supermarkets, delis and markets sold at eight UK locations.
In six cases, half or more of the product was found to be sheep's cheese.
Three of these contained more than 80% sheep's cheese, three contained more than 50%, while three other cheeses contained smaller amounts - around 5%.
Which? said it would be following up its findings with the companies involved and the Food Standards Agency.
People who fail to register to vote should be fined, a think tank has suggested.
Policy Exchange also suggested offering rebates of up to £10 on council tax bills as part of a bid to encourage more people to sign up to vote.
The proposals would address "gaping flaws" in electoral rolls, the think tank said.
It accused the Electoral Commission of failing to tackle rising numbers of omissions and warned that without action there would be 13 millions names missing by the time of the 2015 election.
The watchdog said the commission's own data showed millions of individuals entitled to vote were not included on the registers for their current addresses while others were no longer resident at the registered address, had died or had been mistakenly or fraudulently included.
An Electoral Commission spokesman said: "Individual Electoral Registration is currently being implemented and will make the registration system more secure.
"We've repeatedly made clear that no-one should under-estimate the challenge of ensuring the registers are as complete and accurate as possible as this change is introduced, particularly given our last estimate was that around 7.5 million people are not correctly registered at their current address.
"We take all allegations of electoral fraud extremely seriously and work closely with the police and electoral administrators before every major election to ensure that plans are in place to deal with both allegations and actual cases."
Flags will be flown at half mast to honour Cpl Nathan Cirillo, the soldier who was killed at the National War Memorial in Ottawa, Canadian broadcaster CBC reported.
Police can be seen running up stairs and people running through corridors in new footage from within the parliament building filmed during the attack in Ottawa.
The attack in Ottawa came just 24 hours after Canada raised the level of its terrorism alert for the first time.
Security experts in Canada are still cautious about what lies behind today's events.
ITV News International Affairs Editor Rageh Omaar reports:
A nine-year-old boy and a 44-year-old man have been killed, while an 11-year-old boy is fighting for his life, after a house fire in South Yorkshire.
Firefighters were alerted to a serious blaze at the home in Tennyson Close in Penistone, near Barnsley, at around 6.30pm.
South Yorkshire Fire and Rescue said the thoughts of the department were with the victims' family and confirmed it will resume an investigation into the cause of the fire tomorrow.
Ukip will land a second voice in Parliament next month according to a new poll that puts the party a commanding 13 points ahead of the Conservatives in the run up to the Rochester and Strood by-election.
A ComRes study tips the Eurosceptics to get 43% of the vote, well ahead of the Conservatives on 30%, as Tory defector Mark Reckless bids to regain his former seat for Nigel Farage's party.
Labour trailed in third on 21%, while the Liberal Democrats were way back on 3% alongside the Greens ahead of the November 20 poll.
ComRes interviewed 1,500 adults in the north Kent constituency by telephone between October 17-21.
The soldier killed at the National War Memorial in Ottawa has been named as Cpl Nathan Cirillo, by Canadian broadcaster CBC.
The 24-year-old reservist was serving in the Argyll and Sutherland Highlanders of Canada regiment.