AMMAN (Reuters) -- President Barack Obama said on Friday his administration would work with the US Congress to provide an additional $200 million in humanitarian support to Jordan this year to help with Syrian refugees.

Speaking at a press conference with Jordan's King Abdullah, a key Middle East ally, Obama also said he welcomed Abdullah's moves toward "necessary" political reforms in his country.

Abdullah said he would refuse to close Jordan's borders to Syrian refugees, and Obama said he was concerned Syria could become an enclave for extremists.