Flight attendants on board a Southwest Airlines flight fell ill on Thursday, causing HAZMAT crews to get involved.

Southwest Flight 709 was flying from Norfolk, Virginia to Baltimore-Washington International Thurgood Marshall Airport when two flight attendant fell sick on Thursday afternoon. The plane landed at the airport as planned. It then headed to Chicago as planned, according to the Washington Post.

However, the illness scare caused Anne Arundel County and BWI hazmat and fire crews to board the plane when it landed to sample the air to determine if there was a contaminant or anything unusual in the air.

The flight attendants had both used a cleaning solution which triggered the hazmat teams to investigate and check the plane. The blamed the solution for the incident.

Officials said that the sick flight attendants were taken to Baltimore Washington Medical Center to be treated. They were both treated and released.

The crews also checked the pilot as a precautionary measure to determine if he had any health issues. The plane was carry 134 passengers. There were no illnesses reported by the passengers and they got off the plane when it landed without any issues.

This isn't the first time a flight attendant has gotten ill on a plane. In June, another Southwest Airlines Flight had to turn back to Oakland International Airport after a strange smell from fumes made a flight attendant sick.  When Alaska Airlines made a uniform switch for their employees in May , hundreds of flight attendants complained of itching, hair loss and other adverse health reactions.