London, March 16 -- Hong Kong rights groups, along with several Tibetans, Uyghurs, and local residents, gathered at the historic former Royal Mint Court in London to protest China's plan for a 'mega-embassy. '

They expressed concerns that Beijing might use the facility to intimidate and surveil dissidents living overseas, Radio Free Asia(RFA) reported.

This marks the second mega protest in five weeks at the location near the Tower of London, with organizers estimating around 6,000 participants. The rally ended peacefully with no arrests.

The Chinese government bought the historic building with plans to develop what would be Beijing's largest diplomatic facility worldwide.

An architect involved in the project disclosed details regardin...