(Adds fire under control)
ZAGREB, June 20 (Reuters) - A fire broke out at an oil refinery in the central Croatian town of Sisak on Monday, said owner INA, and raged for more than two hours before firefighters brought it under control.
"The cause was crude products catching fire. There are no casualties and no danger to the environment," said INA in a statement.
The refinery, which can process 60,000 barrels a day, also suffered a fire in January 2010. It and INA's other refinery, a bigger one in the northern Adriatic city of Rijeka, are being upgraded so that they can refine oil products for EU markets.
The fire broke out at 10.30 a.m. local time (08.30 GMT), and firefighters brought it under control by 12.45 p.m., state media and officials reported.
Smoke rose 200 metres into the air as firefighters tried to extinguish the flames, state television said.
"The fire is under control at the moment," the state emergency centre said citing firefighters on the ground.
INA's biggest shareholder is Hungary's MOL which owns 47.46 percent. The Croatian government owns 44.84 percent.
INA is one of the biggest Croatian companies and has exploration and production assets. It is exploring for gas and oil domestically, in Egypt, Angola and Syria.
Croatia is on the verge of completing EU entry talks and is likely to join the block in mid-2013. (Reporting by Igor Ilic; Editing by Andrew Heavens)
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