Story By: Sibel Abdiu, Sub-Editor: Joseph Golder,Agency: Asia Wire Report

A chemistry student allegedly killed his parents by pouring cyanide into a fruit juice and offering it to his mum and dad – telling them he had invented a “new flavour”.

The shocking incident occurred in the Bayrakli district of Izmir province in Turkey after 21-year-old Can Kalkan, a chemistry student at the Dokuz Eylul University, ordered potassium cyanide off the internet.

Local media report Kalkan then mixed the cyanide in with a sweetened fruit juice and offered it to his parents as a “new flavour” he had invented.

His parents, father Mehmet Kalkan, 46 and the mother Fatma Kalkan, 39, reportedly fell unconscious nearly instantly.

Can is said to have offered the poisoned juice to his 16-year-old brother Mehmet Taha but the teenager refused to drink it.

However, the student reportedly tried to force the youngster to drink it and the glass was knocked over.

The pair and their younger brother Emir Can Kalkan, 4, were all affected by the cyanide when it spilt as potassium cyanide can be deadly in the air at high doses.

Father Mehmet Kalkan was taken to the Celebi University Ataturk Training and Research Hospital while the mother Fatma Kalkan was taken to the Aegean University Medicine Faculty hospital but they could not be saved.

All three brothers were taken to the Aegean University Medicine Faculty Hospital and are still being treated.

The incident was reported to the police and security measures were taken in the area and neighbours were evacuated as a preventative measure.

Local media report Can Kalkan was suffering from psychological issues due to losing money on an online business. He will be arrested after his treatment in hospital is complete.

Initial reports had suggested the poisoning had been caused by the youngest brother dropping the cyanide but the latest reports point to Can Kalkan being the one responsible.