Ticketholders are being instructed to seek refunds from the point of purchase.

A music festival, billed as Canada's Woodstock, has been cancelled due to low ticket sales.

Nordstock Music Festival was scheduled to take over Lansdowne Park, August 9 to 11, with an assortment of cover bands paying tribute to the original artists who played Woodstock, 50 years ago.

Organizers decided to cancel the show, citing "insurmountable challenges."

"W50 Group Corporation strived to put on a show like no other; however, due to major financial challenges, lack of sufficient fan support and, now, time constraints, it has become impossible to continue at this time," organizers wrote on the festival's Facebook page.

Ticketholders are being instructed to seek refunds from the point of purchase.

Nordstock is the second Ontario music festival to be cancelled, this summer. Earlier this month organizers cancelled Roxodus, a music festival in central Ontario, that was scheduled for July 11-13.