"Learn from Nice. Get a car you can park somewhere busy with many people – and a gun you can use at the same time," the recruiter wrote via cellphone messenger app.
An Islamist gunman used a heavy truck to kill 84 people and wound some 300 during Bastille Day celebrations in the French seaside city of Nice on July 14. The Daesh claimed responsibility for the atrocity.
The undercover journalist was sent instructions on how to build a bomb using materials at hand and plant it inside a car. He was expected to go on the lone-wolf mission on Monday.
"If [you] succeed in doing those places it will be huge. And damaging for them," the jihadist said, adding the Daesh would remember his work.
Commenting on the Sun’s revelations, Metropolitan Police’s anti-terror chief Dean Haydon assured the public that security forces were constantly reviewing their strategies, taking into account new intelligence data, and admitted that security threat was severe.