Israeli forces move into the main city in southern Gaza

A journalist in Khan Younis tells Newshour that the ground has been shaking because of the intensity of the bombardment.
Also on the programme: how a North Korean family risked everything to defect to the South earlier this year; we speak to Colombia's environment minister about her plans to move away from fossil fuels; and is it time to stop professional golfers hitting the ball so far?

(Photo: Palestinians react as they check the damage at the site of Israeli strikes amid the ongoing conflict between Israel and the Palestinian Islamist group Hamas in Khan Younis in the southern Gaza Strip. Credit: Reuters/Ahmed Zakot)