Polish President Andrzej Duda is leading with the most votes in the country"s presidential election, an exit poll shows.

However, he still appears to be short of the 50% required for an outright win in the first round and could face Warsaw mayor Rafal Trzaskowski in a run-off on 12 July.

Duda won 41.8% and Trzaskowski won 30.4%, according to the projection by the Ipsos polling firm.

Poland’s state electoral commission has said it would release the final official results by Wednesday evening.

Andrzej Duda, a 48-year-old conservative backed by the ruling Law and Justice party, is running against 10 other candidates as he aims for a second five-year term.