The situation with a ruble deficit was aggravated on the Russian currency market this morning, banking specialists reported in an interview with RBC. One-day ruble credit rates rocketed to 25 or 28 per cent even in large banks and they reached no less than 30 per cent in medium-sized and small banks. In general, analysts are pessimistic about the possibility of the improvement of ruble liquidity of Russian commercial banks today. At the same time, they noted that a serious ruble deficit will not lead to a drop in the dollar exchange rate today. Specialists reported that an average-weighted dollar rate remained at the level of 29.9 rubles at the morning trade and even surpassed this level on the interbank market.