One person was shot dead, two were killed by a car, and one fell off bridge, Deputy National Police Chief Ahmadreza Radan said in a television interview late on Sunday.
However, according to a report posted on the Press TV, eight people were killed during the Sunday unrest. The Press TV quoted an anonymous source for its report.
Radan added that 300 protestors were also arrested by the police.
In addition, dozens of policemen were also injured, Radan said.
The Intelligence Ministry said some counter-revolutionary forces were among those arrested.
PA/HG
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MNA