UN Secretary-General Ban Ki- moon on Tuesday reiterated the world organization's support for the transitional process of the Central African Republic (CAR) in meeting with the country's prime minister, a spokesman told reporters.

"The secretary-general met with Nicolas Tiangaye, Prime Minister of the Central African Republic, on Monday," said Martin Nesirky, Ban's spokesperson, at the daily briefing.

The UN chief expressed his support to the prime minister and to the legitimacy he derives from the Libreville Agreements and the N 'Djamena Declaration, Nesirky said.

"He also reiterated the strong commitment of the United Nations to continue to support the transitional process," said Nesirky.

During the meeting, according to the spokesperson, Ban emphasized that the establishment of credible institutions and an inclusive process are critical for the success of the country's transition.

The UN chief also reiterated his deep concern over the continued grave violations of human rights across CAR and the deteriorating humanitarian situation, adding that "it is imperative to stop these abuses and to ensure that the perpetrators are held accountable."

In addition, Ban discussed the ongoing security crisis in the CAR and advocated increased access to the local population in need, said Nesirky.

Fighting flared up again in the CAR in December 2012 when the Seleka rebel coalition launched a series of attacks. The fighters took control of major towns and were advancing on Bangui, the CAR's capital, before agreeing to start peace talks under the auspices of the Economic Community of Central African States (ECCAS).

A peace agreement was reached on Jan. 11 in Libreville, Gabon, resulting in a cease-fire agreement and creating a government of national unity in which opposition figures were given key posts, but last month the rebels seized Bangui in fierce fighting, forcing President Francois Boziz to flee.

The presidents of member states of the ECCAS met on April 18 in the Chadian capital city of N'Djamena and announced the details of the transition roadmap of the CAR.