An explosion at an industrial unit in Lincolnshire Wednesday killed five people and?seriously wounded another in eastern Britain, Xinhua reported.

According to?a police spokeswoman, five men have been confirmed dead, and a sixth man was taken to Boston Pilgrim Hospital.

Police, fire fighters and ambulance crews were sent?to the site.

The cause of accident was still under investigation. "Inquiries are ongoing and will be ongoing throughout the night to establish the cause of this explosion," a police spokeswoman said.

She?said that the circumstances at the moment were still unclear, and that there would be a full forensic examination of the unit.

Boston Central Councillor Peter Bedford said he was shocked by the news. "I don't know the cause or even which unit it was in, but this is a real shock. We don't expect that kind of thing to happen in Boston. It's a small market town and predominantly agricultural."

"I'm very anxious to find out exactly what's happened. It's a lot of people dead and a great tragedy," Boston East councillor Mike Gilbert said.