Two people are reported injured, one seriously, in a blast outside the entrance to a metro station in a southern Stockholm suburb, .
He died after being taken to hospital and a 45-year-old woman also suffered minor wounds to her face and both legs.
Police cordoned off the station and the square where the blast happened as the bomb squad moved in to investigate.
Officers say a 60-year-old man was hurt after picking up an object from the ground which exploded.
Police declined to confirm reports that the object was believed to be a hand grenade.
The Varby Gard station in the municipality of Huddinge, which is about 11 kilometers south of Stockholm, Sweden, was reopened after an explosion killed a man and wounded a woman on January 7, 2018.
There was no indication the couple were targeted, police said.
So far, police did not say whether the explosion was a terror-related incident. "There were very violent gangs" at the time, he said, adding he was "surprised" by this blast because he thought those groups had since disappeared.
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