A weekend of heavy fighting in the capital of South Sudan is the end of the latest peace deal.

Troops loyal to South Sudan's top leaders turned on each other this weekend, and hundreds of people have died since.

Rebel soldiers in Juba in April.

Albert Gonzalez Farran / AFP / Getty Images

Fighting broke out in Juba, the capital of South Sudan, during a meeting between President Salva Kiir and rebel leader and First Vice President Riek Machar.

The two men were once allies in South Sudan's fight for independence, but in 2013, they became formal enemies, vying for control of the new nation. After almost three years of fighting, nearly 2 million people have been displaced, leaving parts of the country in ashes.

Kiir and Machar signed a peace agreement last summer, and after a short standoff, they launched a transitional unity government in late April. But the professed unity didn't last long. During a meeting between the two men at the presidential palace on Friday, gunfire erupted outside, and the city has been in active conflict since.

The fighting has so far lasted five days. The Associated Press reported an explosion in Juba on Monday morning, in a neighborhood close to a United Nations base and the home of rebel leader Riek Machar.

Approximately 30,000 people are seeking protection at that UN peacekeeping base, but the UN Mission in South Sudan has also received reports that "armed forces have prevented civilians from seeking protection."

A UN base built to protect civilians also took fire on Sunday, injuring peacekeepers, a spokesperson for the UN mission in South Sudan said. Chinese media reported that a Chinese peacekeeper died in the incident.

A witness told Foreign Policy that he had seen one South Sudanese girl killed during Sunday's attack on the civilian-protection base when she was struck by a shell, and that he had also seen two adults killed by "stray bullets."