Suspicious parcel fire at UK warehouse was 'test run' ahead of US attackAn apparent firebomb attack at a DHL warehouse in Birmingham, linked to Russian-backed saboteurs, was believed to be a trial run for a US attack, according to Polish officials.
Source: Suspicious parcel fire at UK warehouse was 'test run' ahead of US attack (https://news.sky.com/story/suspicious-parcel-fire-at-birmingham-warehouse-was-test-run-by-russian-spies-ahead-of-us-attack-13248597)