By Alessandro Torello

BRUSSELS--Some positions among European Union countries are still very far apart in talks to agree on a multi-annual budget for the bloc and it is hard to say if an agreement will be reached Friday, Finland's prime minister said.

"It's very difficult to say how far we can go today, everything is open," Jyrki Katainen said as he headed into the second day of talks with other EU leaders. "There are some opinions that are very far from each other."

EU leaders are Friday morning resuming a meeting that started the previous day, aimed at getting an agreement over a budget for the 27-nation bloc between 2014 and 2020.

The leaders ended the first day of talks with little sign that a deal was emerging that would satisfy the U.K. and a large, diverse pack of other malcontents.

Write to Alessandro Torello at alessandro.torello@dowjones.com