The family of murdered Mohammed Hussein Abu Khudair has told ITV News about the moment they saw the 17-year-old kidnapped.
"Two or three Jewish guys came in a car and just kidnapped him and took him away in a second," the boy's cousin said. "Some witnesses heard his screaming."
Middle East Correspondent Geraint Vincent reports from the family's home in in Shuafat, Jerusalem.
More top news
The letter was signed by the CBI, British Chambers of Commerce, the EEF, the Institute of Directors and the Federation of Small Businesses.
A spokesperson said Rory Stewart's remarks were in line with the British government’s stated position.
The minister's intervention will come a week after Trump decertified the landmark agreement claiming it was not in the US national interest.