Somalia's parliament has backed constitutional changes that could ​extend the president's term in office by a year ‌and push back planned elections.

The vote happened on Wednesday, and on Thursday, analysts who follow the Horn of Africa country closely were still debating the exact implications.

Somalia has endured conflict and clan battles without a strong central government since the fall of autocratic ruler Mohamed Siad Barre in 1991.

While an African Union peacekeeping mission has pushed ​back the al Qaeda-linked al Shabaab group, it still controls vast areas of the countryside and has the ability to conduct regular strikes ​on major population centres.

President Hassan Sheikh Mohamud celebrated parliament's backing ​of the constitutional changes at a press conference on Wednesday, saying the ‌approval ⁠process "had dragged on for a long period".

Samira Gaid, an analyst with Balqiis, a Mogadishu-based think tank, said the implications of the constitutional amendments, which have been criticised by opposition lawmakers, ​remained unclear.

"The constitutional ​change doesn't ⁠automatically extend the current president's term, but it is a matter of interpretation. For now, ​the president is being very careful not to ​say ⁠that he is extending his term because of potential criticism from the international community," she said.

Gaid said the elections slated ⁠for ​May would be delayed regardless, because ​there is no agreed framework currently.