Police have sealed off a Bradford street today as a murder probe started into a man's death from stab wounds.
Neighbours said police vans and cars arrived at the terraced house in Washington Street shortly after 12noon.
Residents said after some activity at the house, a woman believed to be Slovakian and in her 50s, was arrested and led in handcuffs into the back of a police van and driven away.
Soon afterwards a white forensic tent was set up in the front garden of the house close to the porch door.
By this afternoon, about eight officers were standing guard around the cordon sealing off the top of Washington Street with Duckworth Lane as detectives carried out door-to-door inquiries.
A forensic team in white suits and masks could be seen going in and out of the house and the tented area to talk to detectives.
Camera flashes could also be seen in the upstairs bedroom window.
Detective Superintendent Mark Ridley, who is leading the investigation, said: "Early inquiries are under way into this incident which is believed to be domestic related.
" A woman has been arrested on suspicion of murder and we are appealing for information about two men police would like to speak to in connection with the incident.
"One is described as Eastern European and bald with a short beard wearing a dark red pullover, blue jeans, black shoes and a puffa jacket.
"The other is described as also Eastern European wearing black shoes, blue jeans and a black waist-length jacket with a logo on the right arm to the elbow and on the left chest. He was also wearing a dark white baseball cap.
"Anyone who who sees these men is asked to contact police on 999 or Crimestoppers anonymously on 0800 555 111."