The BBC now says that the search has been called off until daybreak.
Last Updated: Saturday, 5 May 2007, 19:39 GMT 20:39 UK
"The search location has now been centred around 100kms (62 miles) south-west of [Cameroon's capital] Yaounde," Kenyan Airways chief executive Titus Naikuni told reporters.
He said the extensive search of the heavily-wooded area by low-flying aircraft had found nothing.
A BBC correspondent in Lolodorf said the situation there was chaotic, and that heavy rains had prevented a ground search from taking place.
"They (officials) are not very certain where the crash site is. There's real confusion here," Randy Joe Sa'ah told the BBC's Focus on Africa programme.
Later on Saturday, Cameroon's authorities said the operation had been called off until daybreak.