French police arrest three over Lyon bomb blast

Frenchpolicehavearrestedthreepeople, including a 24-year-old computer science student of Algerian nationality, in connection with last week'sbombblast in Lyon that injured 13 people, authorities said.

The case is being handled as a terrorism investigation given the circumstances of the attack, committed in broad daylight, and the use of an explosive device capable of hitting a large number of people with screws and metal balls packed into a bag.

Apolicesource said thethreearrested were the student, who does not have apolicerecord, a minor who studies at a high school inLyonand is also of Algerian nationality, and a woman.

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The Paris prosecutors' office said that minor was a member of the main suspect's family circle. No information was provided about the woman.

FrenchInterior Minister Christophe Castaner also announced thearrestof the man on Twitter but did not provide further details on the suspect or where he wasarrested.

Security camera footage of the incident shows a partially masked suspect wheeling a bicycle to the scene, before leaving a bag outside a branch of a popular bakery chain.

DNA traces were found on the remains of the parcel, according to a source close to the investigation.

Another source said the judicialpolicearrested the man on the street after having tailed him.

They decided not toarresthim at his apartment, the source said, for fear that there could still be some triacetone triperoxide or TATP, the powerful but unstable homemade explosive that was used in the attack.