An investigation is underway after 30 people were taken to hospital from a Hazmat scene

An investigation is underway after 30 people were taken to hospital following a major reaction from the hazmat team to a chaotic scene in a Massachusetts company.

The reaction to Hazmat at 1 Technology Way in Salem ended around 2:30 am Monday, after having first answered a call late Sunday afternoon and again Sunday night around 9:30 pm.

The initial call came for what appeared to be a chlorine leak inside the thermal circuits, and the building was evacuated as hazmat teams and firefighters responded.

Salem Deputy Fire Chief Alan Dionne said the first incident lasted four hours and ended around 8:00 pm. when the building was declared safe to return.

Once the scene was cleaned, the second shift employees were allowed inside.

At approximately 9:30 pm, workers started complaining of nausea and vomiting, claiming that they were not feeling well. Several workers came out of the building at that time and there seemed to be extreme panic, according to Dionne.

The Hazmat Team determined that the illness that the workers were experiencing was not related to the chlorine leak earlier. Officials said the smell that employees were experiencing was related to the installation of new carpets in the building, but no dangerous or dangerous reading was detected.

Several patients were located on their arrival, and the Salem Fire Department installed many units at the scene with a transit zone near the Salem Hospital.

Twenty patients were treated by the staff of the emergency room of Salem Hospital, according to a tweet from North Shore Medical Center late Sunday night.

The Salem Hospital said some patients had been transported to the hospital by paramedics, while others were walk-in patients.

In all, 15 employees were taken to hospitals by paramedics, while another 15 went to the hospital.

Several patients complained of burning eyes and difficulty breathing.

A regional hazardous materials management team will return to the building, which will not be open Monday. OSHA, DEP and EPA, as well as an industrial hygienist, will be on site.

The city of Salem said that the problem is contained inside the building, and that there is no danger or evacuation necessary in neighboring properties.

The Lynn Fire Department said in a tweet that they cover the city of Salem because of the ongoing Hazmat incident.

The investigation of the incident is ongoing.