The National Bank of Ukraine (NBU) on Tuesday raised its foreign currency supply at an auction on Tuesday from previously announced $30 million to $50 million amid the weakening of the hryvnia, the NBU's press service said.

Hryvnia quotations on the interbank forex market at 11:00 Kyiv time on Tuesday were between UAH 24.80-25.00 per U.S. dollar, whereas when Monday trading ended they stood at UAH 24.60-24.70, commercial banks' dealers said.

As was reported, the NBU sold banks $21.3 million at an auction on January 18, 2016, with bids totaling $42.6 million. The average weighted forex rate was UAH 24.5532 per U.S. dollar.

Prior to that, the NBU held two auctions to buy foreign currency to support the hryvnia in 2016. On January 12 it bought $1.4 million, which fully met submitted bids, and on January 6, it bought $42.1 million while offers made up $57.2 million.