India, Nov. 15 -- Iran's Islamic Revolutionary Guard Corps (IRGC) on Sunday claimed that it had launched a drone attack on a US air defence radar installation at a military base in Bahrain, raising fresh security concerns across the Gulf.

In a statement carried by Iranian state broadcaster IRIB, the IRGC said six drones from its Aerospace Force targeted the radar system at the Al-Riffa helicopter base. It described the operation as the second phase of its response to what it called American military aggression.

There was no immediate independent confirmation of damage to the installation. Neither the US military nor Bahraini authorities had confirmed the latest Iranian claim at the time of reporting.

Bahrain's Interior Ministry issued ...