Russian police arrest woman seen waving child's head

Russian police on Monday arrested a woman who was seen waving the severed head of a small child outside a Moscow subway station. She is suspected of killing the child when it was in her care, officials said.

Videos posted on Russian news websites show a woman dressed all in black, holding the severed head and shouting "I am a terrorist" in Russian, although most of what she says is incomprehensible. In some of the videos the woman is tackled by men who appear to be police.

Russian coal mine accident kills 36, including 5 rescuers

A methane gas leak at a coal mine in Russia's far north triggered three explosions that ignited fires and partially collapsed the mine, killing 36 people, officials said Sunday.

The dead included five rescue workers and a mine worker who were killed early Sunday when the third explosion rocked the Severnaya mine in Vorkuta, a town north of the Arctic Circle in the Komi region, the emergency services said.

What We Know: Key takeaways in case of poisoned spy

A British judge has concluded that two Russians, acting at the behest of Moscow's security services and probably with approval from President Vladimir Putin, poisoned ex-KGB agent and fierce Kremlin critic Alexander Litvinenko. Here's what we know:

Timeline of events in Alexander Litvinenko investigation

A British judge has published a report on the 2006 death of former Russian agent Alexander Litvinenko, saying President Vladimir Putin probably approved a plan by the Russian security service to kill him with poison. Here is a timeline of events surrounding the case:

— 2000: Litvinenko flees Russia and seeks political asylum in Britain, which was granted the following year.