Eur/usd - 1.2623 ... ECB Executive Board member Juergen Stark said the European Central Bank could stop buying government bonds if the recent improvements in debt markets continue. The ECB took the controversial step to start buying government bonds back in May after the Greek debt crisis pushed up borrowing costs n threatened to lock a number of highly indebted countries out of bond markets. The single currency tumbled fm intra-day 2-month high of 1.2723 to 1.2609. Offers are tipped at 1.2640-1.2660 n further out at 1.2680. On the downside, bids are located at 1.2590 n 1.2555/60.