GYUMRI, Armenia -- A son of an opposition candidate for the post of mayor of Armenia's second-largest city has been found dead.

The body of Arshak Grigorian, a son of Vardevan Grigorian of the Flourishing Armenia opposition party, was found with a gunshot wound to the head on September 20.

Doctors at the Gyumri Medical Center, where the body was brought, pronounced the man dead.

It is not clear if Arshak Grigorian committed suicide or was killed.

Police did not give any comments, saying that the investigations are under way.

Vardevan Grigorian is a former rector of the Gyumri Pedagogical University.

He is running for the post of mayor of Gyumri in elections scheduled for October 2.

With reporting by Interfax