The death toll from an explosion and fire at a chocolate factory in West Reading, the US state of Pennsylvania, had risen to seven, authorities said on Sunday.

有关部门周日表示，美国宾夕法尼亚州西雷丁一家巧克力工厂发生爆炸和火灾，目前死亡人数已上升至7人。

"All seven presumptive missing have been found," West Reading Mayor Samantha Kaag said in a statement issued on Sunday night.

西雷丁市长萨曼莎·卡格在周日晚上发表的一份声明中说：“七名疑似失踪者都已经找到。”

None of the victims will be named until authorities are certain that their families have been contacted, said Kaag.

卡格说，在当局确定与他们的家人取得联系之前，不会透露受害者的姓名。

The explosion took place at the R.M. Palmer Company, which makes chocolate, on Friday afternoon. Ten people were sent to the hospital.

爆炸发生在周五下午，生产巧克力的R.M.帕尔默公司。10人被送往医院。

Kaag said that there will be three buildings condemned around the site out of precaution as the investigation continues.

卡格说，随着调查的继续，出于预防措施，现场周围的三栋建筑将被禁止使用。