A man in his 50s has been arrested.
Gardai in Westmeath have seized €20,000 worth of Cannabis herb following a routine search of a house.
The discovery was made in the Castletown, Finnea area yesterday afternoon.
The search was part of an ongoing operation tackling the sale of drugs in north Westmeath.
A man in his 50s has been arrested and is being detained at Mullingar Garda station.