Russian police detain more than 150 protesters

MOSCOW - Russian authorities detained more than 150 opposition protesters on Thursday in Moscow and in St. Petersburg, where a police helicopter hovered low over demonstrators shouting anti-Kremlin slogans on the main street.
Prominent opposition leader Boris Nemtsov, a fierce critic of Prime Minister Vladimir Putin, told Reuters from the back of a police bus that he was among those detained in St. Petersburg.
Rights activists and Kremlin opponents have been staging demonstrations on the last day of each month with 31 days, in a symbolic reference to the right to free assembly enshrined under Article 31 of Russia's constitution.
Hundreds of police ringed Moscow's Triumph Square, the traditional site of the protests in the capital, and grabbed people trying to protest, dragging many away to buses.