A 6.2 magnitude earthquake hit Croatia at 12.20 pm on Tuesday and it has caused extensive damage in Petrinja, some 50 kilometres southeast of Zagreb, where its epicentre was.
It is still not known if the quake has caused human losses.
Damage has also been caused to buildings in the capital city Zagreb, sections of which have been left without electricity.
Croatian Power Company (HEP) said its teams were out in the field working to restore power supply.
The earthquake was felt across Croatia as well as in neighbouring countries.