Plunging oil prices and escalating coronavirus fears rattled Tokyo's financial markets Monday, sending the Nikkei stock average to a 14-month low and the dollar briefly to near ¥101 — its lowest since November 2016.

The 225-issue Nikkei average dived 1,050.99 points, or 5.07 percent, from Friday's close to end at 19,698.76, its lowest close since Jan. 4, 2019. The broader Topix index of all first section issues on the Tokyo Stock Exchange sank 82.49 points, or 5.61 percent, to 1,388.97.

Every industry category lost ground, led by mining, oil and coal products, and iron and steel issues.