An alternative view of the city skyline as preparations continue before the wedding of Princess Madeleine of Sweden and Christopher O'Neill on June 7, 2013 in Stockholm, Sweden. Getty Images

UPDATE: noon EDT — Swedish Prime Minister Stefan Löfven said Friday that "everything indicates" the attack in Stockholm in which a truck drove into a department store was "a terrorist act," NBC News reported. Police told the Guardian that three people were dead and eight were wounded, though other media outlets reported only two people had died.

Much of the city remained shut down Friday as law enforcement investigated.

UPDATE: 10:16 a.m. EDT — The Swedish government offered condolences to the "victims and their families" affected by the apparent attack by a truck that mowed into a crowd of people in Stockholm on Friday afternoon, local time.

UPDATE: 9:54 a.m. EDT — Witnesses in Stockholm on Friday told Swedish media they saw multiple people lying on the street after a truck rammed into a group near Queen Street, injuring and killing several passers-by. Police were on scene as the incident unfolded.

"People were screaming, terrified," local worker Paula Lobos told Expressen. "There is chaos and frightened people everywhere. It's crazy."

Reuters, citing security police, reported that "at least two people" were killed in the crash. The Stockholm assault came just weeks after an attacker drove a car into a crowd near the Westminster Bridge in London, wounding dozens and fatally striking four. It also followed a July attack in Nice, France, where a man crashed into people celebrating Bastille Day and killed more than 80.

UPDATE: 9:33 a.m. EDT — The Guardian reported Friday three people have died after a truck ran into a department store in Stockholm, citing Sweden's Ekot radio station. Police have not publicly confirmed this tally despite reports of injuries.

It also was not immediately clear whether the incident as an accident. Claes Normark, a political adviser there, tweeted in Swedish that "things are pointing to a terrorist attack, saying the "truck deliberately drove at people."

Original story:

Swedish media reported Friday that a truck drove into a crowd of people in the country's capital of Stockholm, injuring several and possibly killing up to three.

The Swedish police confirmed only that they'd gotten calls about people being hurt on Queen Street near Klarabergsgatan, noting in a news release that "information provided about the ongoing events is preliminary and subject to change."

This is a breaking news story. Check back for updates.