UK media reported in late August that the UK Ministry of Defense was close to agreeing a deal with BAE Systems to build five new warships - Type 26 frigates.
According to the UK Prime Minister's Office's statement, the steps to "bolster security" are being taken "in the face of increased Russian threats."
"Today the Prime Minister has announced the next phase in the Type 26 frigate programme, with a £4.2 billion contract awarded to BAE Systems to build five more ships for the Royal Navy – in addition to the three already under construction," it said.
UK Prime Minister Rishi Sunak said the construction of all eight of the Type 26 frigates is expected to be completed by the mid-2030s.