Participants in an opposition rally to mark the 50th birthday of former Yukos CEO Mikhail Khodorkovsky on Tverskaya Boulevard.

26.06.2013#2209984

Leader of the Young Russia movement Anton Demidov, center, holding a portrait of Nefteyugansk mayor Vladimir Petukhov, who was allegedly murdered by the former head of the internal economic security department of Yukos Oil company Alexei Pichugin, convicted of the crime. The man was detained at an unauthorized picket on Tverskaya Boulevard, where an opposition rally marking the birthday of former Yukos CEO Mikhail Khodorkovsky was authorized by the city.

26.06.2013#2209983

Participant of the opposition rally on Tverskoy Boulevard to mark ex YUKOS head Mikhail Khodorkovsky's 50th birthday and police are seen here as they stand near a bus with the detained rally participants.

26.06.2013#2209981

Participants of the opposition rally on Tverskoy Boulevard to mark ex YUKOS head Mikhail Khodorkovsky's 50th birthday are detained by police.

26.06.2013#2209980

A woman is detained at the opposition rally to mark the 50th birthday of former Yukos CEO Mikhail Khodorkovsky on Tverskaya Boulevard.

26.06.2013#2209979

Protesters detained at the opposition rally to mark the 50th birthday of former Yukos CEO Mikhail Khodorkovsky on Tverskaya Boulevard.

26.06.2013#2209978

Protesters detained at the opposition rally to mark the 50th birthday of former Yukos CEO Mikhail Khodorkovsky on Tverskaya Boulevard.

26.06.2013#2209977

A man is detained at the opposition rally to mark the 50th birthday of former Yukos CEO Mikhail Khodorkovsky on Tverskaya Boulevard.

26.06.2013#2209976

A woman is detained at the opposition rally to mark the 50th birthday of former Yukos CEO Mikhail Khodorkovsky on Tverskaya Boulevard.

26.06.2013#2209975

A woman is detained at the opposition rally to mark the 50th birthday of former Yukos CEO Mikhail Khodorkovsky on Tverskaya Boulevard.

26.06.2013#2209974

A man is detained at the opposition rally to mark the 50th birthday of former Yukos CEO Mikhail Khodorkovsky on Tverskaya Boulevard.

26.06.2013#2209973

Participants in an opposition rally to mark the 50th birthday of former Yukos CEO Mikhail Khodorkovsky on Tverskaya Boulevard.

26.06.2013#2209972

Participants in an opposition rally to mark the 50th birthday of former Yukos CEO Mikhail Khodorkovsky on Tverskaya Boulevard.

26.06.2013#2209971

Participants in an opposition rally to mark the 50th birthday of former Yukos CEO Mikhail Khodorkovsky on Tverskaya Boulevard.

26.06.2013#2209970

Participants in an opposition rally to mark the 50th birthday of former Yukos CEO Mikhail Khodorkovsky on Tverskaya Boulevard.

26.06.2013#2209969

A man is detained at the opposition rally to mark the 50th birthday of former Yukos CEO Mikhail Khodorkovsky on Tverskaya Boulevard.

26.06.2013#2209968

Police detain an activist of the Young Russia movement which conducted an impromptu picket near the Timiriazev monument on Tverskaya Boulevard, where an opposition rally was held to mark the 50th birthday of former Yukos CEO Mikhail Khodorkovsky, authorized by the Metropolitan Municipality.

26.06.2013#2209967

Police detain activists of the Young Russia movement, which conducted an impromptu picket near the Timiriazev monument on Tverskaya Boulevard, where an opposition rally was held to mark the 50th birthday of former Yukos CEO Mikhail Khodorkovsky, authorized by the Metropolitan Municipality.

26.06.2013#2209966

Activists of the Young Russia movement and its leader Anton Demidov, center, conduct an impromptu picket near the Timiriazev monument on Tverskaya Boulevard, where an opposition rally was held to mark the 50th birthday of former Yukos CEO Mikhail Khodorkovsky, authorized by the Metropolitan Municipality.

26.06.2013#2209965

Participants in an opposition rally to mark the 50th birthday of former Yukos CEO Mikhail Khodorkovsky on Tverskaya Boulevard.

26.06.2013#2209964

Participants in an opposition rally to mark the 50th birthday of former Yukos CEO Mikhail Khodorkovsky on Tverskaya Boulevard.

26.06.2013#2209963

Participants in an opposition rally to mark the 50th birthday of former Yukos CEO Mikhail Khodorkovsky on Tverskaya Boulevard.

26.06.2013#2209962

A participant of the opposition rally on Tverskoy Boulevard to mark ex YUKOS head Mikhail Khodorkovsky's 50th birthday.

26.06.2013#2209961