Pune, Sep 1 (IANS): One person was killed and three were injured in two blasts here in Maharashtra on Tuesday, but there was no terror angle to the incidents, police said.

In the first incident in Maralnagar in Kondhwa, some old ammunition suddenly exploded when labourers in a scrapyard were weighing it.

The blast created a seven-inch-deep crater in the premises and one labourer took the impact on his chest, killing him instantly.

He was identified as Aslam N. Choudhary, 20, originally from Uttar Pradesh, and the two injured as Asim M. Choudhary, 60 and Ismail M. Choudhary, 18.

Police found another live explosive in the scrapyard which has been sent for analysis.

In the second and bizarre incident, a man allegedly attempted to kill another by planting a low-intensity explosive device on the latter's motorcycle, said Assistant Sub-Inspector Gautam Makhre of Pune rural control room.

"The accused Panduran A. Jadhav had some dispute with Devidas B. Kale, and planted a gelatin explosive with a detonator on Kale's motorcycle. When Kale started his bike, it exploded, injuring him grievously. He has been admitted to a hospital," Makhre said.

Police found remnants of gelatin and detonators from the bike, which was destroyed in the blast. Jadhav has been arrested for the murder attempt.

Top police officials are investigating both the blasts.

The city was rocked by the infamous German Bakery blast on February 13, 2011, that killed 17 people including many foreigners. It was followed by four serial blasts on August 1, 2012 on the Junglee Maharaj Road which left many people injured.