THE death of an 18-year-old-girl is being investigated after police reportedly discovered a note at the scene claiming her boyfriend's dad was to blame for her murder.

       Aleyna Aggul, 18, apparently fell to her death from a fifth floor apartment last Saturday in Igdir, Turkey.

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       Aleyna Aggul was discovered on Saturday Credit: Newsflash 3

       But now police believe her suspected suicide may have been influenced by other events Credit: Newsflash

       But as teams combed the apartment for clues, an alleged note was found that appeared to incriminate a 42-year-old man - who has now been arrested.

       Posthumously attributing blame to the man, who is her boyfriend's father, it read: "Gokhan Argin is responsible for my death".

       According to the news site Haberler, Aleyna had been in a long-term relationship with the man’s son, also 18.

       But, Gokhan, who works in the construction business, allegedly took advantage after seeing nude photos of Aleyna on his son's phone.

       The dad then allegedly called Aleyna to his office, where he is accused of blackmailing her with photographs and then sexually abusing her.

       The dad allegedly had told her: "I have your photos and videos. If you disobey me, I will show them to your family and friends.

       "Everyone will know what you're like."

       A day before her death, she made a complaint to police, according to reports in Turkey.

       Just over 24 hours later the teenager, who also reportedly suffered from depression, was found dead below the block of flats.

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       Meanwhile, Gokhan Argin himself also claimed he had been having an affair with his son's girlfriend as more details emerged about the nature of their relationship, reported news site Sabah.

       After investigators examined the mobile phones and social media of the victim and suspects, Gokhan's arrest was ordered on charges of incitement to suicide, blackmail, deliberate injury, threat, insult and violation of privacy.

       It came just days after he and his son had been detained and subsequently released due to a lack of evidence.

       Meanwhile, Aleyna's devastated parents have repeated their belief that the boyfriend and his father had pushed her to her death and "made it look like suicide".

       Aleyna's father, Kemal Aggul, said: "It was not a suicide, they plotted against my daughter. There were no broken bones in my daughter's body, just a blow to the back of her head.

       “They killed my daughter and left her there. They threw her from the top floor of the building where her uncle lived and made it look like suicide."

       A post-mortem has now been conducted but the report, which could shed more light on the teenager's death, has yet to be released.

       The investigation is ongoing.

       Meanwhile, protests over the young woman's death in the Azeri-majority city, which lies close to the border with Armenia, is due to take place this afternoon.

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       Gokhan Argin has been arrested for the second time in connection with the teen's death Credit: Newsflash

       You're Not Alone

       EVERY 90 minutes in the UK a life is lost to suicide.

       It doesn't discriminate, touching the lives of people in every corner of society - from the homeless and unemployed to builders and doctors, reality stars and footballers.

       It's the biggest killer of people under the age of 35, more deadly than cancer and car crashes.

       And men are three times more likely to take their own life than women.

       Yet it's rarely spoken of, a taboo that threatens to continue its deadly rampage unless we all stop and take notice, now.

       That is why The Sun launched the You're Not Alone campaign.

       The aim is that by sharing practical advice, raising awareness and breaking down the barriers people face when talking about their mental health, we can all do our bit to help save lives.

       Let's all vow to ask for help when we need it, and listen out for others... You're Not Alone.

       If you, or anyone you know, needs help dealing with mental health problems, the following organisations provide support:

       CALM, www.thecalmzone.net, 0800 585 858 Heads Together, www.headstogether.org.uk Mind, www.mind.org.uk, 0300 123 3393 Papyrus, www.papyrus-uk.org, 0800 068 41 41 Samaritans, www.samaritans.org, 116 123 Movember, www.uk.movember.com Anxiety UK www.anxietyuk.org.uk, 03444 775 774 Monday-Friday 9.30am-10pm, Saturday/Sunday 10am-8pm