Seven teenagers have been arrested over the horrific deaths of two children in Cobblebank, Melbourne.

Dau Akueng, 15 and Chol Achiek, 12, were walking home from a basketball game when they were ambushed by a group on September 6.

The pair were stabbed during the attack and died at the scene.

Following a significant investigation, police executed search warrants on Friday morning at homes in Melton South, Thornhill Park, Caroline Springs, Sunbury, Wollert, Hillside and Sydenham.

Two 19-year-old men, an 18-year-old man, three 16-year-old boys and a 15-year-old boy were arrested.

They will be interviewed by police.

More to come ...

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