RIYADH Saudi Arabia - A Saudi man who died last week after returning from Sierra Leone did not have the Ebola virus, according to initial international laboratory results, Saudi Arabia's Health Ministry said.

The ministry said late Saturday that samples submitted to the U.S. Centers for Disease Control and Prevention came back negative for the Ebola virus, adding that samples were also sent for testing to a laboratory in Germany. The ministry said the CDC is conducting additional tests to further confirm the negative Ebola finding and determine if the patient was infected with a different virus found in Sierra Leone.

The 40-year-old Saudi national died Wednesday in a hospital isolation ward in the Saudi coastal city of Jiddah after showing symptoms of the viral hemorrhagic fever. He was the only suspected Ebola case in the kingdom and had just returned from a trip to affected Sierra Leone.

Ebola, which has no proven vaccine or treatment, has killed more than 900 people this year in four countries in West Africa.

Saudi Arabia is not issuing visas this year to Muslim pilgrims from Sierra Leone, Liberia and Guinea as a precaution to avoid the spread during the hajj pilgrimage, which sees massive crowds of people from around the world gather in Mecca. The decision affects a total of 7,400 pilgrims from those three countries.