The names of the 373 children killed in the conflict in Gaza is published in numerous national newspapers today.
Charity Save the Children said the full-page advertisements aimed to show that the children's deaths are an "outrage that is a stain on the world's conscience".
The charity said it hoped to remind "the world of the urgent need to push for a permanent ceasefire".
"To see the names of the children, some as young as a few months, written in stark black and white brings home the tragedy that has befallen Gaza's children," Save the Children's chief executive Justin Forsyth said.
A 72-hour ceasefire between Israel and Hamas began yesterday, halting violence that has claimed the lives of more than 1,900 people.
There have been two days of quiet in Gaza. No rockets or missiles, no more destroyed houses, no more ambulance sirens screaming.
A three-year-old girl has been rescued from Gaza and brought to London for life-saving heart surgery.
A small team of NHS doctors and surgeons is travel to Gaza to set up facilities and establish how best to use specialists and equipment.