NAIROBI, Kenya — Somalia’s leaders agreed to postpone their country’s upcoming presidential vote by one year to deal with pressing security and political issues that had been set aside because of infighting that eroded Somali support for the government.

The agreement released today was welcomed by the international community and the U.N.’s envoy for Somalia, but some critics say its execution might be stunted if Somalia’s leaders don’t follow through on reform promises.

Under the agreement, Prime Minister Mohamed Abdullahi Mohamed will resign within 30 days to pave the way for the formation of a new government that guides the country through the transitional period and prepares it for new elections.