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The U.S. Mission in Nigeria is issuing this emergency message to inform U.S. citizens of potential threats against U.S. installations during the July 4 holiday week. The U.S. Embassy in Abuja is working with the Government of Nigeria to implement additional security measures during this period. The Embassy remains open to the public; individuals visiting the U.S. Embassy are advised to remain alert and bring to the attention of U.S. and/or Nigerian authorities any suspicious activities, or seemingly "out of place" objects, including unattended packages.

All U.S. government personnel in Abuja continue to be restricted from going to places of worship and all commercial establishments adjacent to any place of worship, and are required to return to their residences by 12:00 midnight.

The security situation in Nigeria is fluid and unpredictable at the moment. The U.S. Mission in Nigeria, therefore, strongly urges U.S. citizens in Nigeria to be mindful of their personal security and to keep personal safety in the forefront of their planning. U.S. citizens traveling to or residing in Nigeria are strongly advised to enroll in the State Department's Smart Traveler Enrollment Program (STEP). U.S. citizens without Internet access may enroll directly with the nearest U.S. Embassy or Consulate. By enrolling, you make it easier for the U.S. Embassy or Consulate to contact you in case of emergency.

U.S. citizens should contact the U.S. Embassy in Abuja or the U.S. Consulate General in Lagos for up-to-date information on any restrictions. The U.S. Embassy in Abuja is open Monday - Thursday 7:30 a.m. to 4:30 p.m. and Friday 7:30 a.m. to 1:30 p.m. The U.S. Consulate General in Lagos is open Monday-Thursday from 7:00 a.m. to 4:00 p.m. and Friday 7:00 a.m. to 1:00 p.m. The U.S. Embassy in Abuja can be reached by telephone, including after-hours emergencies, at +234(9) 461-4000. The U.S. Consulate General in Lagos can be reached by telephone, including after-hours emergencies at +234(1) 460-3600 or +234 (1) 460-3400.
SOURCE http://nigeria.usembassy.gov/smac_07032012.html