U.N. officials worried South Africa may suspend Namibia's independence program said Wednesday peace-keeping troops may be flown in to restore peace at the northern border with Angola, where four days of fighting killed 200 people.

The police commissioner in northern Ovambo region, where fighting erupted the first day of the independence plan Saturday when SWAPO guerrillas crossed the border, said battles along the 180-mile front had subsided and only two deaths were reported Wednesday.South Africa has controlled Namibia, also known as South West Africa, since 1915. The leftist SWAPO began fighting for independence in 1966.

South African Foreign Minister Pik Botha demanded immediate action from U.N. Secretary-General Javier Perez de Cuellar.

Three battalions of Finnish, Malaysian and Kenyan soldiers - the bulk of the 4,650-member military component of the U.N. Transition Assistance Group - have not yet arrived but a senior official said Wednesday efforts were under way to advance their landing.