Plano police aren't sure if the robberies are connected, but they're stepping up patrols in diverse neighborhoods hoping this is not a repeat of crimes last year that targeted one ethnic group.
The first one took place March 17 just before noon.
A woman came home to find the window of her back door shattered and a male intruder pointing a handgun to her. He stole the cash she had on her and jewelry from her home and then forced her into a closet.
On Thursday, a man encountered an armed burglar inside his home, asking for jewelry.
Local police have seen thieves target Asian, Indian and Middle Eastern families before for a specific reason.
"Gold is like an asset for us, so that's why we have jewelry," said Meera Ramaiyer, who lives nearby.
While alarm signs are in most yards where the crimes happened, they haven't seemed to deter the burglars.
The homeowners' association and Plano police are keeping neighbors updated on the investigation and are asking if they see any unusual cars or individuals in the area to report it.
Police advise to answer the door when someone knocks or rings the doorbell by yelling through the door, "Who is it?"
Always keep doors and back gates locked, and invest in security cameras and alarm systems.