Armenian presidential candidate, Paruyr Hayrikyan, has been shot by unknown gunmen at his home in the capital Yerevan.

Armenian Shans TV reported that gunmen fired two shots, wounding Hayrikyan with a bullet to his shoulder. His condition is not said to be life-threatening but the attack could delay this month’s election.

Hayrikan, 63, is one of eight candidates running, however he is not regarded as a strong challenger to the incumbent Serzh Sarksyan, who is expected to be re-elected for a second five-year term.

A former dissident, Hayrikan is the leader of a moderate opposition party, the National Selfdetermination Union.

According to Armenia’s constitution, the election could be postponed by two weeks if a candidate is unable to campaign or run. In the event of a candidate’s death, a new election is called, to be held within 40 days.