HOUSTON -- Two people were shot and killed at a southwest Houston apartment complex Friday afternoon, KPRC Local 2 reported.

Residents of the Shadow Tree Apartments in the 9400 block of West Sam Houston Parkway at Lansdale heard gunshots shortly after noon.

"(I heard) 10 shots go off and then I looked out my window and (saw) a couple of guys running away. I ran back in the house," a witness who did not want to be identified said. "I saw a gun in one of their hands."

One person was found dead in the courtyard. The other victim was found inside an apartment.

"Typically on deals like this, with no witnesses, no leads, unless the public calls us, it probably won't get solved. That's what we're going to need," said Richard Martinez, with the Houston Police Department.

Neighbors said the two victims are from New Orleans. Their names were not released.

"They go to school. They don't bother nobody. I don't see what could have happened -- the reason they wanted to do that," a friend said.

The gunmen escaped.