Victoria B.C. doctor self-quarantines as two colleagues hit by Ebola in West Africa

VICTORIA – A British Columbia doctor has reportedly placed himself under a voluntary quarantine after returning from a trip to Africa to fight the Ebola virus.

The humanitarian group Samaritan's Purse tells CTV that Dr. Azaria Marthyman returned to Vancouver Island from Liberia on Saturday.

Two American aid workers, including one of Marthyman's colleagues at Samaritan's Purse, American Dr. Kent Brantly, are in hospital in Liberia after contracting the Ebola virus.

Melissa Strickland of Samaritan's Purse tells CTV that Marthyman had no symptoms of the virus as of Monday and therefore wouldn't be contagious.

Still, Strickland says Marthyman placed himself under quarantine in his home after learning that other aid workers, including Brantly, had been infected.

Neither Strickland nor Marthyman returned emails and telephone calls seeking comment on Tuesday.

The World Health Organization says the ongoing Ebola outbreak in Africa is the largest ever recorded, killing more than 670 people in Liberia, Guinea and Sierra Leone.

Sierra Leone's health ministry says Dr. Sheik Humarr Khan, a leading virologist, died Tuesday from the disease.

— With files from The Associated Press