Two Ebola patients, given the experimental drug ZMapp, have been allowed to leave a treatment centre in the Liberian capital after testing negative for the disease.

The pair – both medics – were greeted by country’s president in Monrovia.

“Really, really good news. First of all I just want to say to both of you, how happy we are that you have survived this,” said Ellen Johnson Sirleaf.

Meanwhile, residents have been celebrating the lifting of a blockade in a neighbourhood of the capital.

Streets in the West Point district had been closed for 10 days after an Ebola health centre was stormed.

Residents had feared that they would run out of food and safe water due to the outbreak.

In Sierra Leone, youth groups have taken to the streets of Freetown to raise awareness of Ebola, as the virus continues to spread.

More than three thousand cases have now been reported across West Africa.

Liberia has been the hardest hit, reporting at least 694 deaths.

Senegal has joined the list of affected countries, announcing its first case on Friday.