King Abdullah II of Jordan, which hosts tens of thousands of Syrian refugees, urged Wednesday "a political solution" in the neighbouring country, saying he is "worried" about the violence there.
Meeting with a US congressional delegation, the king said he is "worried about the developments in Syria," a palace statement said.
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"He stressed the need to end violence in Syria and to find a political solution," it added.
The UN refugee agency UNHCR has said that the number of registered Syrians in Jordan had reached around 12,500 in April, adding that the number is expected to rise.
But Amman says more than 100,000 Syrians have sought refuge in the kingdom since the uprising against President Bashar al-Assad erupted in March last year, killing over 9,000 people, according to the United Nations.