https://lk.usembassy.gov/travel-advi...nsider-travel/

Travel Advisory: Sri Lanka – Level 3 – Reconsider Travel
On April 26, 2019, the Department of State ordered the departure of all school-age family members of U.S. government employees in Kindergarten through 12th grade. The Department also authorized the voluntary departure of non-emergency U.S. government employees and family members.

Terrorist groups continue plotting possible attacks in Sri Lanka. Terrorists may attack with little or no warning, targeting tourist locations, transportation hubs, markets, shopping malls, government facilities, hotels, clubs, restaurants, places of worship, parks, major sporting and cultural events, educational institutions, airports, hospitals, and other public areas.