At least 180 Kenyan soldiers were killed in Somalia in an extremist attack on their base in January by al-Shabab, Somalia’s president said, which would represent a historically high battlefield loss for Kenyan forces.

Between 180 and 200 Kenyan soldiers were killed in the Jan. 15 attack, President Hassan Sheikh Mohamud said Wednesday. He was speaking in an interview on a Somali cable TV channel while attending a conference in Turkey. Kenya’s government has concealed the death toll.

Kenya’s military spokesman, Col. David Obonyo, denied the figures given by the Somali President but refused again to give an official death toll.

“You will be given all the details once a board of inquiry finishes its work,” he said.