Two women dressed only in denim hotpants struggled with riot police in the German capital's Tiergarten district, near to where the President will speak this afternoon.
Across their breasts and bellies was written the slogan: 'Obama help.'
Don't look! German riot police appear to avert
their eyes as they detain a FEMEN activist near the Brandenburg Gate in
Berlin's Tiergarten district this morning, ahead of a speech by U.S.
president Barack Obama
Obama help! In a statement issued to MailOnline,
FEMEN explained that the protest was a call to President Obama to
intervene over the jailing of three of the group's activists over a
topless protest in Tunisia last month
'FEMEN appeal to the leader of world democracy the president of USA Barack Obama about the violation of human rights in the Middle East and ask to contribute to the release of Tunisian prisoners of FEMEN,' it said.
'Obama help FEMEN!'
Pictures showed the two German activists struggling with heavily armoured riot police officers near the Brandenburg Gate, where Obama will appear this afternoon.
They appeared to scream and fight with the officers, who took care to grip them only by their arms as they led them away from crowds of astonished onlookers.
Careful now... German police appear to take care to hold this FEMEN protester by her arms as they cuff her
Modus operandi: The group, which has its origins in the Ukraine, is famous for its topless protests
Marguerite Stern and Pauline Hillier, from France, and Josephine Markmann, from Germany, were arrested on 29 May as they protested bare-chested in front of the Tunis Court building.
The trio had approached the entrance to the ministry wearing coats which they took off, revealing naked torsos scrawled with 'Breasts Feed Revolution'.
Wearing just jean shorts, the women chanted in English 'Free Amina' and 'Women's spring is coming' as people in the crowd attempted to cover them.
The women then climbed up on the gates of the Justice Ministry until police pulled them down and hustled them shouting into the building as an angry crowd gathered.
Supporters: Tunisian security arrest French Femen activist Pauline Hillier for taking part in a topless protest outside the
Ministry of Justice in the capital Tunis against the earlier arrest of fellow activist
Amina Tyler
Baring all: From left, Hillier, German activist
Josephine Markmann and Marguerite Stern, from France. The trio were last
week sentenced to four months and one day in jail for charges relating
to the protest
She had sparked outrage in the conservative country by posting topless pictures of herself to Facebook wearing the slogan 'My body belongs to me' in Arabic across her bare chest.
She was taken into hiding by her family after conservative preachers issued death threats against her, including one who called for her to be stoned to death.
But she later attempted another protest on May 19 in the religious centre of Kairouan, where she was arrested.
Amnesty International has condemned the convictions for public indecency, undermining public morals, and making noise disturbing peace as 'an unacceptable restriction on freedom of expression'.
The naked truth: Amina Tyler, 19, caused outrage
in her native Tunisia when she posted topless photos of
herself wearing the slogan 'My body belongs to me' on her Facebook page in a protest over women's rights
'Even if some may consider the three women's protest offensive or counter-productive, this cannot justify placing them behind bars.
'If the Tunisian authorities are serious about respecting their international human rights obligations, they should release the three women.'
FEMEN today confirmed to MailOnline that two of its activists had been arrested in Berlin and were being held in police custody.
The group, which has its origins in the Ukraine, is fast becoming famous for its topless protests.
President Obama's speech at the Brandenburg Gate this afternoon is expected to revive proposals for nuclear weapons disarmament.