The United States has dispatched a team from the Navy Pacific Command to join the search for the group lost in a Chiang Rai cave, the US Embassy in Bangkok announced on Thursday.

A command centre is being set up to coordinate key agencies tackling traffic congestion in Bangkok and surrounding areas. Among other steps, the centre will integrate nearly 3,000 CCTV cameras previously spread across three agencies as it seeks to smooth out rush-hour traffic flows and speed up responses to problems.