Tokyo stocks opened lower on Monday, tracking falls on key US indexes as investors weighed risks linked to yields and awaited comments from US central bank officials this week.

The benchmark Nikkei 225 index fell 1.31 percent or 389.41 points to 29,402.64 in early trade, while the broader Topix index was down 0.98 percent or 19.80 points at 1,992.41.