Three men have been charged in connection with serious and organised crime and drugs offences after cocaine worth £1m was seized.
The men, aged 29, 35 and 54, were arrested along with a 54-year-old woman after warrants were executed across West Lothian on Thursday.
Officers recovered 21.5kg of cocaine, with an estimated street value of £1m, and seized about £80,000.
The woman was released pending further inquiries while the men are due to appear at Livingston Sheriff Court on Monday.
The warrants were issued as part of Operation Silhouette, led by the Serious and Organised Crime Unit.
Locations visited included Fauldhouse, West Calder, Polbeth and Livingston.
Det Supt Steven Elliott said: “This is a significant seizure and continues to highlight our ongoing efforts to disrupt drug supply and protect those in our communities affected by illegal drugs.
“We work every day to protect the public to prevent drugs being circulated on our streets. This is vitally important in addressing the concerns of local people.”
He added: “Our operation underlines our commitment to the Serious Organised Crime Taskforce and the country’s Serious Organised Crime Strategy.
“Information and support from the public is vital to our work and I would encourage anyone with concerns about drug activity in their area to contact us.”