You can now read 10 articles in a month for free on BostonGlobe.com. Read as much as you want anywhere and anytime for just 99¢.

The Boston Globe

World

Russian opposition leader is arrested

MOSCOW — Russian authorities arrested one of the country’s most prominent political opposition leaders on Wednesday, accused him of plotting to organize mass riots, and said he could face terrorism charges.

The arrest of Sergei Udaltsov, the buzz-cut, black-clad leader of the Left Front, a radical socialist group, seemed to accelerate the government’s ­efforts to bring serious criminal cases — with the prospect of long prison terms — against critics of President Vladimir V. Putin.

Loading comments...

You have reached the limit of 10 free articles in a month

Stay informed with unlimited access to Boston’s trusted news source.

  • High-quality journalism from the region’s largest newsroom
  • Convenient access across all of your devices
  • Today’s Headlines daily newsletter
  • Subscriber-only access to exclusive offers, events, contests, eBooks, and more
  • Less than 25¢ a week