STV Productions Ltd. acquired a 25% stake in drama producer Two Cities Television for an undisclosed sum.

The television production arm of Scottish broadcaster STV Group PLC will be able to boost its stake in Two Cities to a majority interest over the next three years. British Broadcasting Corp. unit BBC Studios Ltd. is exiting Two Cities as part of the deal.

The transaction will also allow STV to provide creative and financial support to Two Cities, which is seeking to expand its U.K. and global footprint. Two Cities, which produced Sky Atlantic and CBS Showtime-commissioned "Patrick Melrose," is currently developing several drama series.

STV Productions previously took a majority stake in unscripted producer Primal Media Ltd.