A Bosnian migrant in Austria travelled back to his homeland to blow up his ex-girlfriend with a hand grenade when he found out she was seeing somebody else.

Bosnian migrant Dalibor Gavric, 42, lived in the Austrian capital of Vienna where he met waitress Miljana Malesevic, 24, also from Bosnia. The couple started a relationship and even though he was married and had two daughters, he divorced his wife so that he could live with the younger woman.

But he was always jealous, and frequently the jealousy turned to violence which resulted in Milijana, with whom Gavric had a 4-year-old son, eventually leaving him and when she could not escape in Vienna, she fled back to Bosnia two months ago.

Dalibor Gavric, left, lived with Miljana Malesevic in Vienna until she ran off with another man and returned to her native Bosnia and opened up a new and successful restaurant

Gavric, 42, had a four-year-old son with 24-year-old Malesevic, who had a premonition days before his mother's murder that his father was going to come and kill her

Gavric found Malesevic in the town of Prnjavor, northern Bosnia and have her a hug, when he pulled the pin on the hand grenade, killing her instantly and leaving himself with grave injuries

With the experience she learned in Austria, she set up a cafe back home and even found a new partner in the town of Prnjavor in Northern Bosnia.

The cafe called 'Acapulco' was doing well and she was reportedly enjoying life with her new boyfriend.

Yet Dalibor could not get over the relationship with her and wrote threatening text messages to her on a daily basis, according to local media. When he learned that Milijana had found a new boyfriend, he completely snapped and immediately went to Bosnia himself.

Friends had warned Malesevic against leaving the cafe with her crazed ex-boyfriend

According to eyewitnesses, Milijana was sitting in her cafe with her friends when Dalibor suddenly appeared around 9pm on Wednesday evening.

They said that Dalibor insisted on having a private conversation with her, but they warned her not to leave the cafe with him. As soon as they left the building, Gavric hugged her and allegedly activated the hand grenade.

Milijana Malesevic was killed instantly in the blast, while miraculously Dalibor Gavric survived and was taken to a local hospital with serious injuries. He is currently in intensive care.