Updated

Mexico City's human rights commission says police arbitrarily detained people during protests against the party of the president who was sworn in over the weekend.

The independent organization says in a Thursday report that 22 people were randomly chosen by the capital's police. The document says they detained people peacefully protesting the inauguration of President Enrique Pena Nieto, helping the injured, documenting the demonstrations or just passing by.

Pena Nieto brought the Institutional Revolutionary Party back to the presidency after a 12-year break. The party governed for 71 years using a mix of handouts and rigged votes before losing the 2000 and 2006 elections.

Hundreds of protesters threw firebombs at police and smashed windows on inauguration day. At least 76 people were injured and 103 detained.