The foreign secretary stresses "the UK's unwavering resolve to combat threats from Iranian-linked groups in UK soil, including attacks on the British Jewish community".
The G7 also condemns "in the strongest terms" Houthi attacks on Saudi Arabia, saying that the escalation in fighting in Yemen jeopardises global energy security.
Sinkevičius told BBC Newsnight Lithuanians feel "constantly threatened" by Moscow, but the nation was prepared to "fight back" if attacked.
Cold War veterans who oversaw nuclear tests have claimed they caused lifelong health problems.
