Laura Archer, a Canadian nurse working for Médecins Sans Frontières who was taken hostage last week in Darfur, Sudan, returned to Montreal on Saturday evening.

Laura Archer, shown arriving at the airport in Khartoum, and three colleagues with Médecins Sans Frontières were held captive a few days in Darfur before their release March 14. (Associated Press)The P.E.I. native arrived at Pierre Elliott Trudeau International Airport about 8 p.m. ET looking tired but healthy.

"I want to say thank you very much to everyone for all of your concern and support that's been expressed across Canada," she said in a statement she read to reporters.

"But I hope we can put all our energy and attention on the people in Darfur."

Gunmen abducted Archer along with three co-workers on March 11, and held them for four days.

She said she didn't want to go into details about the kidnapping, but called the ordeal "certainly a very frightening experience."

"[I] definitely feared for my life." She would not say if a ransom was paid to secure her release.

But she said she has not ruled out future work with MSF on account of the abduction.

"My main concern now is not about myself or my colleagues, it's about the people left in Darfur," she told reporters.

Archer, along with Mauro D'Ascanio, an Italian doctor; Raphael Meunier, a French co-ordinator; and Sharif Mohamadin, a Sudanese guard, were released by their captors on March 14.

North Darfur Gov. Osman Yusuf Kibir said earlier this month a group calling themselves the Eagles of Bashir had released the hostages. He said the group members gave authorities the slip as they fled into nearby mountains.

Aid groups expelled

He said the group abducted the workers in retaliation for an arrest warrant issued by the International Criminal Court for Sudanese President Omar Hassan al-Bashir, whom the court has accused of orchestrating atrocities in Darfur.

Al-Bashir expelled 13 international aid groups earlier this month, accusing them of helping the International Criminal Court. Aid groups deny working with the court. MSF has evacuated all its staff from Darfur.

Archer began her tour of duty in Darfur with MSF last October. She had previously worked with the organization in the Central African Republic, Chad and Congo.

She told reporters Saturday she needed sleep and was looking forward to seeing her parents, who weren't at the airport.