The Kenyan government has reportedly named Mohamed Mohamud, also known by aliases Dulyadin and Gamadhere, as the mastermind who planned Thursday's attack in Kenya's Garissa University College, according to a tweet from the country's Interior Ministry.
The ministry said in a document that Mohamud was "credited with having an extensive terrorist network within Kenya," reported the CNN.
Earlier, the ministry had posted a "Most Wanted" notice for Mohamud, offering a reward of 20 million Kenyan shillings (215,000 dollars).
The document said that Mohamud led external operations against Kenya and held the position of the regional commander within Al Shabaab in charge of the Juba region. He commanded the militia long the border and was responsible for "cross-border incursions" in the nation, the ministry added.
Mohamud has been involved in several other attacks in the past few years, including December's quarry attack in which non-Muslim workers were separated from their Muslim counterparts and killed.
Thursday's attack was claimed by Al-Shabaab, an Al Qaeda-linked militant group based in Somalia.