Navalny's wife held as protests sweep across Russia

Yulia Navalnaya, the wife of the detained Kremlin critic Alexey Navalny, has been detained in Moscow on the sidelines of a protest held in support of her husband on Saturday, according to a video posted on social media.

The video shows Navalnaya being stopped by police at the entrance to a metro station in central Moscow near where protesters ware gathered. She is then shown being escorted to a police van.

Hundreds of people have been arrested at the rallies across Russia that were held in defiance of the authorities and, in some cases, extremely low temperatures. According to OVD-Info, an independent site that monitors arrests, 1,338 people had been detained during the day.

Yulia Navalnaya joined the protest in Moscow, sharing a photo of herself at the rally on Instagram. A caption read "So happy you are here. Thank you!" Less than 30 minutes later, Navalnaya shared another photo of herself in what she says is a police car.

Navalny's mother, Lyudmila Ivanovna Navalnaya, also attended the rally in Moscow.

Navalny was detained at a Moscow airport late Sunday, just moments after arriving from Germany, where he spent five months recovering from Novichok poisoning he blamed on the Russian government. The Kremlin repeatedly denied any involvement.