An 18-year-old woman was stabbed to death on Thursday afternoon outside her apartment in Tel Aviv.
Evidence found at the scene suggested that the woman's sister and her male friend, both around 18, were at the scene. The two have been detained and are being brought in for questioning. Police said the testimonies they gave were problematic and they therefore are considered the prime suspects.
According to the initial investigation, the woman was with her sister in the apartment in Simtat Neta Street, on the border of Givatayim, when she received a telephone call from an unknown, male caller.
The caller apparently asked her to step outside. She left the apartment, closing the door behind her. Shortly thereafter, loud screams were heard.
The woman's sister said she opened the door to find the victim lying on the floor, bleeding heavily. She also saw a man who she did not recognize fleeing the scene.
Police were searching the area for the suspect. Shin Bet security service agents dismissed the possibility of the murder being related to terror.
"We arrived at the address and found a woman who appeared to be about 20 showing signs of severe violence," said Magen David Adom paramedic Eliav Cohen, who was one of the first people on the scene.
"We tried every treatment we could, but nothing worked, and eventually we pronounced her dead."