North Korea has again fired projectiles towards the sea, the South Korean military said Monday.

Two missiles were fired eastwards toward the sea from Sunan Airport in the capital Pyongyang on Monday, the South Korean Armed Forces General Staff said.

They were believed to be short-range ballistic missiles. It is now clear how far they flew.

UN resolutions prohibit North Korea from testing ballistic missiles, some types of which are capable of carrying nuclear warheads.

The latest launch would be the fourth North Korean missile test since the beginning of the year.

Experts in South Korea said that presumably North Korea sought to demonstrate military strength and prove its ability to launch missiles from different locations and platforms.

North Korea says it fired two missiles from a train-mounted ballistic missile system on Friday.

That launch came after the United States Treasury Department imposed fresh sanctions against the regime in Pyongyang, specifically targeting five North Koreans accused of procuring goods for their country's mass destruction and missile programmes.

North Korea is subject to tough international sanctions because it has continued for years to develop missiles, primarily those which can be fitted with nuclear warheads.

Negotiations between North Korea and the United States have not made any progress since a failed summit between North Korean leader Kim Jong Un and then-US president Donald Trump in Vietnam in February 2019.

dpa