Arab mediators have given rival Lebanese factions holding crisis talks in Qatar a deadline of another day, and two different proposals on breaking their country's 18-month political deadlock. A Qatari official hosting the two sides, minister of state for foreign affairs Ahmed bin Abdullah al-Mahmoud, says the proposals were the "best solutions" the mediators came up with Tuesday to resolve the crisis. Three days of talks in Doha have focused on key issues - a national unity government and a new electoral law - which would also lead to the election of a new Lebanese president. Mahmoud would not reveal the proposals' content. Doha talks follow an Arab mediated deal that got Lebanese camps to end a week of violence, worst since Lebanon's 1975-90 civil war.