A Swedish activist who was detained in China on charges of damaging national security has been released and deported.

Peter Dahlin, 35, has been held since early January amid
a crackdown on human rights lawyers and activists.
Last week he appeared on state media apparently
confessing to breaking the law through his
organisation's support of local Chinese rights lawyers.
The Swedish embassy confirmed he had left China but
gave no further details.
Its foreign minister welcomed Mr Dahlin's release, but
expressed concern about another Swede in Chinese
detention.
More than 280 lawyers, legal assistants and associates
were detained in a seemingly orchestrated government
campaign last year - most have since been freed, but
others now face trial while the whereabouts of others
are still unknown.
Such moves contradict China's implementation of
reforms explicitly aimed at strengthening the rule of
law, say correspondents.
'Absurd' confession
Mr Dahlin is the founder of Chinese Urgent Action
Working Group (China Action), which describes itself as
a legal aid organisation.
It provides assistance to uncertified "barefoot" lawyers
who provide legal aid in rural areas, and provides direct
help to disadvantaged groups and individuals who have
experienced rights violations.
The group had said Mr Dahlin was detained on 4
January while en route to the airport for a flight to
Thailand.
Last week, in a report on state television, Mr Dahlin
appeared to confess to helping the Beijing law firm
Fengrui - a number of the firm's lawyers have recently
been charged with subversion .
Mr Dahlin said he had violated Chinese law, caused
harm to the Chinese government and hurt the Chinese
public.
China Action called the report "absurd" and said the
confession appeared to be forced.
The group's US-based co-founder Michael Caster
tweeted that Mr Dahlin's Chinese girlfriend, Pan Jinling,
was also no longer in detention "but, contrary to some
assertions, has not left the country".
Analysis: John Sudworth, Beijing correspondent
China's image as a sophisticated, rising superpower
appears increasingly at odds with its toughening
campaign against dissidents, activists and lawyers, and
Peter Dahlin's case is a good illustration of that
widening gulf.
Mr Dahlin found himself first held in secret detention,
then paraded on state TV making a confession that had
all the hallmarks of one written for him, before finally
finding himself accused of being a foreign agent
engaged in a mission to smear China.
Friends and colleagues of his say the charge would be
absurd, laughable even, were it not for the fact that it
carries such serious consequences. But unlike Chinese
nationals facing the same arbitrary justice, Mr Dahlin
had the benefit of a foreign government working on his
behalf.
His sudden release may be the result of that intense
diplomatic effort or it may simply be that he has served
China's purpose in sending a chilling message to other
foreign NGOs operating in China: engagement with
Western organisations and values is fine in so far as
they help boost China's capitalist economy, but they will
not be tolerated if they are perceived to threaten
Communist Party rule.
Sweden's Foreign Minister Margot Wallstrom said she
remained "greatly concerned" about the status of
detained Swedish national Gui Minhai.
Mr Gui is one of five people linked to a Hong Kong
publishing house to disappear in recent months. He
vanished while on holiday from Hong Kong in Thailand
in October last year.
He also appeared on Chinese TV earlier this month ,
saying he had voluntarily handed himself over to the
authorities over a drink-driving fatality years ago.
The case has sparked protests in Hong Kong from those
who believe they were kidnapped by China and are
being held because of allegations in a book they were
working on, critical of the mainland.
Ms Wallstrom said Sweden's "efforts to get a clear
picture of his situation and the possibility to visit him
continue with undiminished force".
Mystery disappearances in Hong Kong book world
Gui Minhai: 51, disappeared in Thailand in October 2015
only to appear on Chinese TV earlier this month
apparently confessing to a hit-and-run incident in 2003.
The China-born Swedish national owns the Mighty
Current publishing house
Lui Bo: last seen in mainland China, just north of Hong
Kong, in October 2015. General manager of Mighty
Current
Cheung Jiping: 32, last seen in mainland China in
October 2015. Mighty Current's business manager
Lam Wingkei: 60, last seen in Hong Kong in October
2015. Manager of Causeway Bay bookstore
Lee Bo: 65 - also known as Paul Lee - disappeared in
Hong Kong in late December 2015. A shareholder in
Causeway Bay bookshop and a UK passport holder.
Wife withdraws request for police to help find him in
early 2016 saying he has been in contact from mainland
China