A Cessna aircraft has crashed on the outskirts of South Sudan's capital, killing all 13 passengers and the pilot, the civil aviation authority says.

The authority said preliminary reports indicate that the plane arriving from Yei town may have crashed due to weather conditions that caused poor visibility.

It said the dead included two Kenyans, and the rest were South Sudanese.

South Sudan has experienced a series of aviation accidents in recent years, often involving small aircraft operating in remote areas with limited infrastructure.

More than 55 planes have crashed, resulting in dozens of fatalities, in the decade following South Sudan's independence in 2011.

with EFE