US air marshal attacked with syringe in Lagos

The FBI says the syringe contained an unknown substance.

FILE: Nigeria is one of five West African countries affected by the Ebola virus which has killed more than 2,100 people since March. Picture: AFP.

AUSTIN - A US air marshal was undergoing tests in a hospital in Houston after being assaulted in Lagos, Nigeria with a syringe containing an unknown substance, the Federal Bureau of Investigation said on Monday.

The marshal was attacked on Sunday at the airport in Lagos and given an on-scene screening by the Centers for Disease Control and Prevention before boarding a United Airlines flight to Houston that landed on Monday, it said.

"The victim did not exhibit any signs of illness during the flight and was transported to a hospital upon landing for further testing. None of the testing conducted has indicated a danger to other passengers," it said, without providing further information.

Nigeria is one of five West African countries affected by the Ebola virus which has killed more than 2,100 people since March.

The epidemic, the worst since the disease was discovered in 1976, has killed some 2,100 people in Guinea, Sierra Leone, Liberia and Nigeria and has also spread to Senegal.

The World Health Organisation believes it will take six to nine months to contain and may infect up to 20,000 people. In Liberia, the disease has already killed 1,089 people - more than half of all deaths reported since March in this regional epidemic.