An advert poking fun at North Korean dictator Kim Jong-un infuriated some officials from the country's nearby London agency.
Strict guidelines released in North Korea say all men should have the same haircut as leader Kim Jong-un.
North Korea's leader Kim Jong Un won a 100% of the vote, so should a lack of electoral representation worry the world more?
The North Korean government says two US tourists detained in the secretive state are guilty of "hostile acts".
Matthew Miller, 24, was reportedly detained in April of this year, while 56-year-old Jeffrey Fowle has been in custody since mid-May.
"Their hostile acts were confirmed by evidence and their own testimonies," said the official KCNA news agency.
Another American citizen, Christian missionary Kenneth Bae, arrested in November 2012, was convicted of crimes against the state and sentenced to 15 years' hard labour last year.
North Korea is set to try two US citizens for "crimes against the state", according to the country's state news agency, KCNA.
The North Korean leader Kim Jong Un has been taking a tour around a naval submarine.
Photographs show him testing equipment, dispensing advice, and meeting the crew.
They gave him a compulsorily warm welcome.
North Korean officials have joined bereaved families and residents in mourning those killed when a building collapsed in Pyongyang last week.
The country's government today offered a rare public apology over the accident, saying the construction of the apartment "was not done properly" and officials "supervised and controlled it in an irresponsible manner".
North Korean leader Kim Jong-un reportedly suffered deep anguish over a building collapse in Pyongang that left many dead, according to the country's state media.
The Korean Central News Agency said Kim "sat up all night, feeling painful after being told about the accident", South Korea's Yonhap news agency reported.
A North Korean official added that the leader "instructed leading officials of the party, state and the army to rush to the scene, putting aside all other affairs".
The number of casualties in the accident has not been revealed, although officials in Seoul believe it could be "considerable", Yonhap said.
"In North Korea, it is common that people move into a new apartment even before the construction is completed. About 92 households may have been living in the apartment," a South Korean government official said.
An apartment building under construction in the North Korean capital of Pyongyang has collapsed, causing an unknown number of casualties, according to South Korean news agency Yonhap.
Apartment under construction collapses in Pyongyang http://t.co/DgEGcrN2e3
The incident was marked by a rare apology from senior officials, as "the construction of an apartment house was not done properly, and officials supervised and controlled it in an irresponsible manner".
Complaints from the North Korean embassy against a hair salon's poster poking fun at their leader's unusual hairstyle has reached the corridors of power in Whitehall.
The Foreign Office has confirmed it received a letter this week complaining about the picture of Kim Jong-Un which was displayed in M&M hair Academy's window in South Ealing.
The advert said: "Bad Hair Day? 15% off all gent cuts through the month of April."
Staff at the west London salon were confronted by two men claiming to be North Korean officials over the marketing stunt earlier this month.