A statement from the Kenya Episcopal Conference called the two "staunch patriots and God-fearing Kenyan citizens."
"We urge the government to fast-track investigations into the cause of the accident and hope that the lessons learned from this and similar accidents in the past will help avert further loss of life," said the bishops.
"We assure all Kenyans our prayerful communion as we all mourn and come to terms with the great loss to our nation," they added.