Corrie McKeague: Timeline of events

• Friday September 23: Corrie and a group of friends go for a night out in Bury St Edmunds.

• Saturday September 24: Corrie becomes separated from his friends after leaving a nightclub in the early hours and goes for a takeaway. He sleeps in a shop doorway for two hours before texting a friend at 3.08am. This is the last time he used his mobile phone.

• 3:24am, September 23: Last confirmed sighting of Corrie is as he enters a refuse area.

• Monday September 26: Corrie is reported missing after failing to turn up for duty at RAF Honington.

• Tuesday September 27: Police make a media appeal and a police helicopter searches the 10-mile stretch between Bury and the RAF base.

• Wednesday September 28: Police, RAF and other search teams scour routes between Bury and Honington.

•Monday October 3: A bin lorry is seized after the movement of Corrie’ s phone the night he disappeared matches its route. The phone is not found.

• Tuesday October 11: Search dogs are brought in.

• Friday October 21: Police release CCTV footage of Corrie’s last sighting.

• December 6: Corrie’ s grandparents, Mary and Oliver McKeague from Cupar, announce are ward for information.

• December 7: Corrie’s mother Nicola Urquhart offers a £50,000 reward thanks to an anonymous local business couple. A £20,000 fundraising drive is also launched.

• January 9: April Oliver, 21, from Norfolk, announces she was Corrie’s girlfriend and is pregnant with his child.

• February 10: Police announce they will search a landfill site at Milton.

• March 7: Police say the bin collection from the area was discovered to weigh more than 100kg, not 11kg.

• May 15: Police begin an 11-week search of the landfill site. No trace of Corrie is found.

• August 1: Police examine material found in incinerator waste. It is found not to be related to the missing airman.

• September 21: Police release new CCTV images of four people who may have interacted with Corrie.