UK authorities have released five British nationals on bail following their arrest near a military airbase, as Iran denies any role in the suspected plot. The arrests came amid heightened tensions linked to the ongoing conflict with Iran, which has also driven diesel prices to record highs. The UK government has warned of Iranian "proxies" while Iran has condemned what it calls "unfounded and malicious speculation." The release of the suspects does not signal the end of the investigation, according to police. The situation has intensified diplomatic strains, with the UK's foreign minister vowing to take action against Iranian-linked groups. Meanwhile, the war in the region continues to impact global energy markets, contributing to the sharp rise in diesel costs. The UK's military base, used by American aircraft, remains a focal point of the investigation. Officials have not yet confirmed the full scope of the alleged plot or its connection to Iranian activities.