Continue inside to see the statement is on their website...
Here's the Lagos hotel warning by US diplomats also on the US Embassy in Abuja's website reads:
Security Message for U.S. Citizens Lagos Area Hotels During Eid-al-Fitr Holidays (July 5, 2016)
The U.S. Mission in Nigeria advises that groups associated with terrorist activity might be planning attacks against hotels in Lagos frequented by international visitors, including those located on waterfronts, during the Eid-al-Fitr holidays (5 and 6 July 2016).
The U.S. Mission in Nigeria reminds you to review your personal security plans, remain aware of your surroundings, including local events, and monitor local news stations for updates. Be vigilant and take appropriate steps to enhance your personal security.