A group of men recently arrested in Britain had been planning an attack, officials said, a development likely to ramp up tensions between Israel and Iran.

The Israeli embassy in London was the alleged target of five Iranian men arrested on suspicion of preparing an act of terrorism, the BBC understands. Police have not yet confirmed that the embassy in Kensington was the suspected target,

Iran's Foreign Minister has “categorically” denied reports that Iranian nationals were arrested in the UK over involvement in a plot to target the Israeli embassy in London. “We are seeing stories in the media that Iranian nationals are allegedly involved in a supposed plot to target the Israeli embassy in London,