Authorities on Wednesday were investigating an explosion that occurred in the morning in Aradippou, with sources suggesting it may have been caused by army ammunition.

The blast injured three people, one of them seriously. It happened at around 7.30am at a metal recycling site located in the industrial area of Aradippou, according to a police report.

According to daily Philenews an item delivered to the site for recycling in the morning exploded a short while later.

Those injured were taken to Larnaca general hospital where it was confirmed that a 68-year-old man was injured seriously, while the two others sustained slight injuries.

The pensioner is believed to have been at the site taking recycling there, while the other two are employees.

Members of the police as well as the department of labour inspection went to the scene to conduct tests to determine the causes of the explosion.

Philenews later added that the preliminary police checks concluded that the item may have come from the National Guard, calling officials to the scene to collect evidence, which will need to undergo specialist testing before anything is verified.

The investigation will now focus on determining where the item was collected, with a source claiming that the most likely scenario is that it came from a National Guard shooting range.