Israel election: 'Great challenges ahead' - Netanyahu

Israel's prime minister Benjamin Netanyahu has said he has spoken to all nationalist parties and asked them to form a government "without delay".

The country's governing Likud party and the opposition Zionist Union are neck-and-neck in Israel's general election, according to exit polls.

Estimates by two Israeli broadcasters gave both sides 27 seats each in the 120-seat parliament, the Knesset.

Both would need support from other parties to form a governing coalition.