Military clashes erupt between Azerbaijan and Armenia - official sources

After the Armenian armed forces targeted the civilian settlements in neighboring Azerbaijan, and causing dozens of casualties, the military conflicts broke out between two countries, according to the information released by the official sources on Sunday.

On Sunday morning, Azerbaijani started "active bombing" along the Karabakh's frontline to retaliate against the deadly Armenian attacks.

The two former Soviet countries have long been in conflict over Azerbaijan's breakaway, the region of Nagorno-Karabakh, and border clashes have intensified in recent months.

Ethnic Armenians in Nagorno-Karabakh declared independence during a conflict that broke out as the Soviet Union collapsed in 1991.

Though a ceasefire was agreed in 1994, Azerbaijan and Armenia frequently accuse each other of attacks around Nagorno-Karabakh and along the separate Azeri-Armenian frontier.