(Bloomberg) -- A Kenyan court found three people guilty of orchestrating one of the deadliest terror attacks in the East African nation.

The men were found culpable for conspiring to, committing the attack and being members of a terrorist group that raided Garissa University in April 2015, Kenyan Chief Magistrate Francis Andayi said Wednesday in the capital, Nairobi. “I come to the conclusion that they knew of the plot and were therefore part of the attackers,”Andayi said.

The sentencing is scheduled for July 3.

Read about the latest major terrorist attack in Kenya

The dawn incident at the university, about 145 kilometers (90 miles) from the Somalia border, killed 147, mostly students. The militant group al-Shabaab, an al-Qaeda affiliate, claimed the raid that marked the worst terror attack on home soil since the 1998 U.S. embassy bombing that left 224 people dead.

Kenya has experienced a spate of deadly raids by Islamist militants, with the most recent targeting an upmarket hotel and office complex in the capital in January. In 2013, members of al-Shabaab burst into a busy high-end Nairobi shopping mall and randomly executed at least 67 people.

--With assistance from Eric Ombok.

To contact the reporter on this story: David Herbling in Nairobi at dherbling@bloomberg.net

To contact the editors responsible for this story: David Malingha at dmalingha@bloomberg.net, Pauline Bax

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