Nov 23 (Reuters) - The euro extended falls against the Swiss franc on Tuesday, losing one percent on the day as investors sought perceived safe havens following tensions between North and South Korea.
The euro also remained under broad heavy selling pressure on concerns the euro zone's debt problems may spread beyond Ireland.
The euro fell as low as 1.3344 francs EURCHF=, its weakest in a week and a half, extending falls after it broke through stop loss orders at 1.3360 francs, traders said.