This security boost coincides with international diplomatic events, including a high-profile meeting between US President Donald Trump and Russian President Vladimir Putin in Alaska, which ended without progress on Ukraine or a ceasefire.

The investigation into suspicious activities uncovered small fires and a woman filming the area, raising concerns about potential plans to disrupt operations at the strategic NATO base.

Authorities suspect that Russian handlers may be involved in orchestrating these threats, with recent tensions between Italy and Russia, including Italy summoning the Russian ambassador over diplomatic disputes.

Italy has heightened security measures at the US nuclear-capable Aviano Air Base following intelligence indicating a potential sabotage attempt linked to Russia, including recent fires and suspicious activities near the site.

The investigation into the threats involves a woman filming and taking photos near the base, with authorities suspecting Russian handlers may be involved in planning fires and other disruptions.

Security levels at Aviano remain elevated at 'Bravo plus,' with no recent fires reported, but authorities continue to monitor the situation closely.

Aviano supports F-16 fighter jets and holds US nuclear munitions, making it a critical NATO hub for military operations across Europe, Africa, and the Middle East.

Located near Pordenone in northern Italy, Aviano is a vital NATO and US military hub, supporting missions across multiple regions and operated mainly by the Italian Air Force.

Investigators are also exploring possible links to Italian protest groups like No Base, with suggestions that Russia may have infiltrated such organizations to destabilize the region.

Italian police, Carabinieri, and rapid-response units have increased patrols and security measures, including drone surveillance, following the alert and recent threats.

Local officials held an emergency security meeting and activated immediate countermeasures to address the potential sabotage, emphasizing the seriousness of the threat.

The heightened security at Aviano is part of broader efforts to reassure local residents amid international tensions, with the US Air Force coordinating closely with Italian authorities.