Violent clashes in Sudan must end "immediately," US Secretary of State Antony Blinken said Saturday.

The top US diplomat said he was "deeply concerned" about the reports of fighting. He said US embassy staff in the capital Khartoum are all "currently accounted for."

"We urge all actors to stop the violence immediately and avoid further escalations or troop mobilizations and continue talks to resolve outstanding issues," he tweeted from Hanoi, Vietnam, where he is passing through on his way to a Group of Seven (G7) foreign ministers' meeting in Japan.

Also Read: Explosions heard in Sudan's capital

Earlier Saturday, explosions and gunfire were heard in the Capital of Sudan, Khartoum, according to AFP.

Witnesses said that “confrontations” broke out and explosions and gunfire were heard near a base where the Rapid Support Forces are stationed in southern Khartoum.

Gunfire was also heard near Khartoum airport and in the north of the Sudanese capital.