Google is significantly expanding its operations in Northern Virginia, as part of a $13 billion round of investment in new offices and data centers across the U.S.

Google CEO Sundar Pichai announced the plans in a blog post Wednesday afternoon.

“With new office and data center development, our workforce in Virginia will double,” Pichai wrote.

The post did not specify exact locations or other details, but Google currently has an office at Reston Town Center and was reported to be considering a major new lease near the Wiehle-Reston East Metro station.

It was also previously reported that Google had purchased sites in Ashburn and Leesburg for two new data centers.