At least 13 people are dead and 21 others are injured after a gunman opened fire at a school in central Russia on Monday morning.

It happened at a school in Izhevsk, the Udmurtia region’s capital. The shooter reportedly killed a guard and multiple children, according to the governor of the Udmurtia region, Alexander Brechalov.

Russia's Investigative Committee says the shooter was wearing a t-shirt with "Nazi symbols" during the attack. 

"There are victims among the children, there are wounded too," Brechalov said.

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The gunman reportedly shot himself. The dead include 7 children and six adults, while the wounded include 14 children and 7 adults.

Brechalov said the school has been evacuated and the area around it has been closed off. 

This is a breaking news story. Check back for details.

The Associated Press contributed to this report.