The British government has approved construction of the country's first new nuclear power plant in decades, to be built with Chinese investment.

The government says in a statement that it has "decided to proceed" with the Hinkley Point plant.

Prime Minister Theresa May unexpectedly stalled the deal after she took office in July.

She said she wanted to review the power project in southwestern England, financed by a Chinese nuclear power provider and French energy giant EDF

China's ambassador to Britain warned that the move left U.K.-Chinese relations at a crossroads.

Britain said Thursday that the Hinkley deal would include new measures to enhance security. It said it would also impose "significant new safeguards" on future foreign investment in Britain's critical infrastructure, including nuclear power.