Two men have been attacked this evening in what witnesses have described as a drug deal gone wrong.
The attack happened at the top of Somers Road at approximately 8.30pm and two local men have been hospitalised with major wounds.
A witness, who asked not to be named, said two men he believed to be South London drug dealers, aged in their mid-20s - one black, one white - attacked the two Portsmouth men outside the KS Convenience Store.
One of the knives, used by the black attacker, was described as a 12-inch kitchen knife.
One man has rushed to Southampton General Hospital whilst the second was taken to QA Hospital. Both are said to be in a serious condition.
Pools of blood and a discarded paramedics kits can be seen on the pavement outside the store,