The woman came in on a flight from Colombia and authorities conducted a baggage search when she began acting suspiciously. "During a check of passengers from a plane from Bogota, the gestures and behavior of a supposed tourist raised the suspicions of narcotics agents," airport security officials said in a statement, the Local reported.
After the initial drug hunt came up empty, female officers conducted a body search of the woman and found "certain irregularities and deformations in both breasts."
The 43-year-old woman then confessed that her implants were packed with cocaine.
When the woman was taken to the hospital to have the implants removed, officials recovered almost four pounds of cocaine.
This is not the first time something like this has happened. Spanish police previously busted a Panamanian woman with more than three pounds of cocaine stuffed in her implants in 2012.
A Spanish police unit that checks on so-called "hot flights" has already made 189 arrests this year.