A man and a woman from Texas, who were in town to visit their son, died after being stabbed at a Bellevue apartment late Monday, according to the Bellevue Police Department.

The couple’s 30-year-old son has been taken into custody, according to Bellevue Police Chief Steve Mylett.

The victims, a 57-year-old man and a 58-year-old woman, had been visiting for less than a week, he said.

“We don’t know what happened, but we will get to the bottom of it,” Mylett said.

Police were called to the LIV Apartments in the 15500 block of Northeast 22nd Place at 11:20 p.m. and found all three members of the family with stab wounds, he said.

The son survived but the older couple were critically injured and died at the hospital, he said.