Nearly 150 concerts of concerts, many of them teenage girls, made a syringe in a strange attack at a nationwide music festival in France on Saturday, and a suspected dozen are nabed about worrying barrages, according to officials.

Implementation of local and national law is investigating the wave of damaged incidents in which suspects who have unknown syringes blocked 145 casualties in Fêtes de la Musique, or World Music Day, celebrations across the country, making some hospitalized.

The first attack was reported to the police at 9:15 in the afternoon at Rue Du Palais in Metz in Northeast France, According to President François Grosdidie.

Authorities received a report of a suspect involved in one of the attacks and used security footage to pursue it, Grosdidie said.

“Municipal police identified him in Rue Serpenoise, arrested him and made him available to the National Police and the Department of Justice,” he added.

“I hope that the investigation, especially through the examination of its mobile, will lead to identifying other attackers.”

Firefighters immediately responded to each attack, placing seven emergency vehicles and creating a scenic area for victims in the country D’Mils, Grosdidie said.

French officials were anticipating unprecedented crowds for this year’s Fêtes de la Musique, a free music festival held annually in the summer solstice.

It shows a mix of professional and amateur musicians playing in different countries, including parks and street corners in cities across the country. Officials estimated that 50,000 people participated in concerts in Metz while “unprecedented crowds” went down to Paris.

Beyond France, there were millions of people who took to the street on Saturday evening for the festival, According to the world. None of them were prevented by posts on Snapchat and other social media sites warning of the strange attack of syringes.

The Interior Ministry said 145 victims across the country reported that they had been stabbed with a needle, with police officers in Paris who tried 13 cases in the capital.

Officials did not specify whether the syringes were filled with drug rape such as Rohypnol or GHB, used by sex attackers to make women and girls susceptible to sexual assault, La Monde reported.

Since Sunday, at least three people reported that they felt sick after being deceived by the maniacs of syringes.

“Some victims were taken to hospital for toxicological tests,” the ministry said.

Police arrested 12 suspects who believe they were involved in the twisted syringe attacks, the Interior Ministry said. The attackers are believed to have targeted about 50 victims, a La Monde police source told.