Newshour

Weather experts are warning that a developing El Niño weather system could become the strongest since modern records began. The effects of El Niño on weather patterns are already being felt.Also in the programme: Pakistan's former prime minister Imran Khan has been returned to prison after being in hospital; and a new book on the violent career of Carlos the Jackal.(Picture: Firefighters work to extinguish a fire in Indonesia. A severe dry season, intensified by El Nino has fueled wildfires. Credit: EPA/Shutterstock)