More than 1 million people took to the streets of Hong Kong to protest a controversial bill that would allow China to extradite fugitives from the city.

The Civil Human Rights Front organized the protest on Sunday and said 1.03 million people participated. Hong Kong police reported about 240,000 people protested.

While critics of the extradition bill say it will leave people in Hong Kong at risk of being apprehended by Chinese authorities for political reasons or minor business offenses, the government says it is intended to close legal loopholes, CNN reported .

Supporters say it would allow Hong Kong to decide case by case whether or not to send criminal suspects to places where Hong Kong doesn't have formal extradition relationships, such as mainland China. Chinese lawmakers have said a guarantee of a fair trial will not be written into the bill, according to CNN.

Opponents, which include members of legal, business and human rights organizations, worry that the extradition legislation will undermine Hong Kong's semi-autonomous legal system and allow China to extradite political opponents,

Hong Kong has limits on where it will extradite people accused of a crime to jurisdictions that it has existing agreements with. Other situations are handled case-by-case. China has been left out of agreements because of concerns over the country's judicial system and human rights offenses.

The march began at Victoria Park in central Hong Kong and protesters wearing the designated color of the event, white, yelled chants against the legislation while marching along a nearly 2-mile route to the Legislative Council in the Admiralty business district.

Hong Kong Police Force said on Twitter that multiple were arrested during the protest and at least one person was taken to the hospital.

