As soon as Amasa's body was removed from the road, all the men went on with Joab to pursue Sheba son of Bichri.

2 Samuel 20:1
Now a worthless man named Sheba son of Bichri, a Benjamite, happened to be there, and he blew the ram's horn and shouted: "We have no share in David, no inheritance in Jesse's son. Every man to his tent, O Israel!"

2 Samuel 20:11
One of Joab's young men stood near Amasa and said, "Whoever favors Joab, and whoever is for David, let him follow Joab!"

2 Samuel 20:12
But Amasa wallowed in his blood in the middle of the road, and when the man saw that all the troops were stopping there, he dragged the body off the road into a field and threw a garment over it.

2 Samuel 20:14
Sheba passed through all the tribes of Israel to Abel-beth-maacah and through the entire region of the Berites, who gathered together and followed him.

When he was removed out of the highway, all the people went on after Joab, to pursue after Sheba the son of Bichri.