Iran is spreading "bloodshed and destruction" astir the world, the overseas caput volition say.
James Cleverly volition pass Iran's weapons are threatening security, pointing to their usage by Russia to people Ukrainian civilians.
He volition spell connected to reaffirm the UK's determination to forestall Tehran from acquiring a atomic weapon.
Iran agreed to bounds atomic activities successful speech for lifting of sanctions successful 2015.
However, determination are fears the state is going backmost connected this promise.
Speaking astatine the Manama Dialogue planetary information league successful Bahrain connected Saturday, Mr Cleverly is expected to say: "Iran's atomic programme is much precocious than ever before, and the authorities has resorted to selling Russia the equipped drones that are sidesplitting civilians successful Ukraine.
"As their radical show against decades of oppression, Iran's rulers are spreading bloodshed and demolition arsenic acold distant arsenic Kyiv.
"Britain is determined to enactment alongside our friends to antagonistic the Iranian threat, interdict the smuggling of accepted arms, and forestall the authorities from acquiring a atomic weapons capability."
Mr Cleverly's comments connected Iran travel astatine a clip of heightened tensions.
Earlier this week the UK authorities imposed much sanctions connected Iranian officials linked to the ongoing brutal crackdown against anti-government protests.
The demonstrations against Iran's clerical constitution erupted 2 months agone aft the decease of Mahsa Amini, a 22-year-old pistillate who was detained by morality constabulary for allegedly breaking strict hijab rules.
At slightest 362 protesters, including 56 children, person been killed and 16,000 arrested according to the Iranian Human Rights Activists News Agency (HRANA).
On Wednesday, Ken McCallum, the manager wide of MI5, revealed Iranian quality agents had been targeting radical successful the UK who they respect arsenic enemies of the regime. This included astatine slightest 10 threats since January unsocial to kidnap oregon adjacent kill British oregon UK-based radical perceived arsenic enemies of the regime, helium said.
After the meeting, Mr Cleverly volition question to adjacent Qatar to ticker England instrumentality connected Iran successful their opening World Cup lucifer connected Sunday.