France, June 22 -- French police have detained twelve suspects after 145 people reported being pricked with syringes during the country's annual Fete de la Musique, officials said Sunday.

Millions of people took to the streets across France on Saturday evening for the Fete de la Musique, with authorities reporting unprecedented crowds in Paris.

Before the party, posts on Snapchat and other social media had called for targeting women during the festivities.

The interior ministry said 145 victims reported being stabbed with needles across the country, with Paris police reporting 13 cases in the capital.

Officials did not specify if they were cases of so-called needle spiking with date-rape drugs such as Rohypnol or GHB, used by attacker...