A gunman opened fire in a school in central Russia on Monday, killing 15 people and wounding 24 others before shooting himself dead, authorities said.

The shooting took place in School No. 88 in Izhevsk, a city 960 kilometers (600 miles) east of Moscow in the Udmurtia region. Russia’s Investigative Committee identified the gunman as 34-year-old Artyom Kazantsev, a graduate of the same school.