MONROVIA, Oct 16 (Reuters) - Liberia's presidential election looked likely to go into a run-off after nearly complete provisional results on Monday showed President George Weah and opposition leader Joseph Boakai were nearly tied in the race for the presidency following a Oct. 10 election.

       Boakai holds a slim lead at 43.70% of the vote, while Weah has 43.65%, according to tallied results from 92.8% of polling places, the West African nation's election commission said.

       To avoid a run-off, the winner must secure more than 50% of votes cast.

       Reporting by Carielle Doe; Writing by Anait Miridzhanian; Editing by Jonathan Oatis

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