“Please refrain from spreading unauthentic and false information on Social Media,” the agency said.
The social media platforms have been used in the past to spread rumors and incite violence. Last year, violence against Muslims swept through small towns because of social media posts about attacks against Buddhists.
Explosions hit multiple churches and hotels in Sri Lanka on Easter Sunday, killing more than 200 people and injuring hundreds more.
The Associated Press contributed to this report.