A young Jewish man has been arrested in Israel on suspicion of masterminding the wave of bomb threats made against Jewish centres in the US and around the world this year.

The 19-year-old man holds both Israeli and American citizenship and used “advanced camouflage technologies” to shield his location and throw investigators off his scent, Israeli police said.

The arrest in Israel was made as part of a joint probe with the FBI and Jeff Sessions, the US attorney general, hailed it as the “culmination of a large-scale investigation spanning multiple continents”.

The arrest is another strange twist in the story of around 150 bomb threats made against Jewish schools, community centres and synagogues in the US since January.

The unrelenting string of calls rattled America’s Jewish community and led to accusations that Donald Trump’s White House was not doing enough to speak out against the anti-Semitic threats.