Al-Shabab Twitter Accounts Suspended

The social media site Twitter has again suspended the account of militant group al-Shabab, after the group posted messages about the deadly mall attack in Nairobi.

Twitter first shut down the account after al-Shabab claimed responsibility for Saturday's mall attack, which left more than 60 people dead.

The militant group quickly re-appeared on the site using a slightly different moniker, and was posting messages again on Monday. However, later in the day Twitter shut down the new account.

Before the suspensions, al-Shabab had issued several messages detailing the attack on the Westgate mall.

Over the past year, Twitter has suspended several accounts of al-Shabab, including after the militants posted photographs of a French soldier it killed and for threatening Somalia's president.