Iran's foreign minister has warned the United Kingdom against allowing the United States to use British bases, describing such cooperation as "participation in aggression."

The Iranian foreign minister reached out to UK Foreign Secretary Yvette Cooper to express concerns about British cooperation with US military activities. Iran characterized the potential use of UK bases by American forces as direct involvement in aggressive actions.

The warning comes amid ongoing tensions in the Middle East and represents Iran's attempt to discourage Western military cooperation in the region. The specific nature of the US operations or base usage that prompted Iran's diplomatic protest was not detailed in the communication.

The Iranian government has urged the UK to end its cooperation with the United States regarding military base access. This diplomatic pressure reflects Iran's broader opposition to Western military presence and operations in the Middle East region.