Kenya's aviation regulator says an airplane carrying 10 passengers that was scheduled to arrive in Nairobi has been missing for seven hours.

The Kenya Civil Aviation Authority said in a statement Tuesday that the plane operated by Fly Fax last was observed on radar around 2 p.m. local time flying at an altitude 11,000 feet 40 nautical miles from Nairobi. It was flying from the western Kenyan town of Kitale to the capital city.

The statement said a search-and-rescue operation launched after the plane's disappearance has been suspended for the night and will resume.

Crashes involving light aircraft are reported every other month in Kenya. Many people on board escape with injuries.