A helicopter has crashed in central Kenya at Mount Ololokwe in Samburu county, killing all six people on board, air The Aircraft Accident Investigation Department tells the BBC the identities of those on board are not yet known. Key points and original sources are listed below.

• A helicopter has crashed in central Kenya at Mount Ololokwe in Samburu county, killing all six people on board, airS1

• The Aircraft Accident Investigation Department tells the BBC the identities of those on board are not yet known.S2

• A ‌helicopter crashed on Wednesday in Kenya's Samburu county, the aviation ​authority said, ​and local media reported that tourists were ​believed to be on board.S3