IRKUTSK, July 21 (RIA Novosti)) - One person was killed and at least seven were injured in an attack on an environmentalist camp in the Irkutsk Region in southeastern Siberia early Saturday, a local police source said.

Police said at least 15 assailants raided a tent camp at the Yelovskoye Reservoir near the city of Angarsk occupied by a group of protesters against reprocessing of nuclear waste at a local plant.

"The attack on a tent camp occurred at 5.10 am Moscow time (1.10 am GMT) Saturday. At least

15 attackers raided the camp occupied by 21 environmentalists," the source said.

"A 21-year-old man was killed and seven people were hospitalized with injuries," he said.

Police said they have detained two suspects in the assault and identified at least 13 others.

A criminal investigation has been launched in connection with the attack.