LAGOS, Oct 23 (Reuters) - The United States and Britain on Sunday warned of a possible terrorist attack in Nigeria's federal capital Abuja, especially aimed at government buildings, places of worship and schools, among other targets. Register now for FREE unlimited access to Reuters.com Register"The U.S. Embassy will offer reduced services until further notice," the embassy said in an alert to citizens in Nigeria. The United Kingdom government warned that its citizens in Nigeria should stay alert due to an "increased threat of terrorist attack in Abuja." "Attacks could be indiscriminate and could affect western interests, as well as places visited by tourists," it said. Register now for FREE unlimited access to Reuters.com RegisterReporting by MacDonald Dzirutwe; Editing by Daniel WallisOur Standards: The Thomson Reuters Trust Principles.

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