Almost $5.5 million worth of cannabis has been seized by detectives as part of an ongoing drug crackdown in south-east Queensland.

The latest raid led to the discovery of close to 2000 cannabis plants and more than 130 kilograms of dried cannabis, on top of the $1.35 million worth of the drug already seized during the operations.

An aerial view of the cannabis uncovered at the Old Talgai property. Credit:WIN News Toowoomba - Facebook

On Tuesday, officers raided a property on Kessler Road in Old Talgai, about 65 kilometres south-west of Toowoomba.

They allegedly recovered 1825 plants and 139 kilograms of dried cannabis, worth $4,562,500 and $918,000 respectively.