Firefighters and medics are seen near the site of an explosion in central Lyon, France, May 24, 2019.
Firefighters and medics are seen near the site of an explosion in central Lyon, France, May 24, 2019.

French authorities say four suspects have been arrested in connection with a bombing that injured 13 people last week in the city of Lyon.

Investigators say the suspects include a 24-year-old Algerian computer science student.

French news agency Agence France-Presse reports the man's parents were also arrested and taken into custody for questioning, along with another Algerian student who is a relative.

The student had been the target of an extensive police manhunt since Friday night when a homemade explosive device filled with screws and ball bearings was left outside the store of a popular bakery chain in the historic center of Lyon.

Security camera footage showed a partially masked suspect wheeling a bicycle to the scene, before leaving the bag in front of the store.

Police circulated photos of the footage on Twitter, leading to "several dozen" leads.

Eight women, four men and a 10-year-old girl, were wounded in the blast, but their injuries were not believed to be life-threatening, according to French authorities.