Terrorism alert desk: social media threats
A group of ISIS supporters has threatened to take down Facebook and Twitter -- as well as their leaders.
Photos of Mark Zuckerberg and Jack Dorsey appear multiple times in a 25-minute video created by a group that calls itself the Sons Caliphate Army.
The images of the two CEOS are sometimes engulfed in flames, or marked with bullet holes.
The video is in response to efforts by Facebook and Twitter to stop terrorist activity on their platforms
Somalia's President says at least 180 Kenyan troops died in an Al Shabab attack on their base in Somalia in January.
Kenya hasn't confirmed that numbers.
If it is confirmed, the attack would constitute Al Shabab's deadliest assault since its inception in the mid-2000s.