AKIPRESS.COM - Three people, including a minor, were being held Sunday in the slaying of a newly inaugurated mayor just hours into her term in a gang-troubled central Mexican city.

Morelos Gov. Graco Ramirez ordered flags on state buildings flown at half-staff and called for three days of mourning following the killing of Temixco Mayor Gisela Mota, media reported Monday.

He blamed organized crime for killing the 33-year-old Mota, a former federal congresswoman who had been sworn in as mayor the day before she was gunned down in her home Saturday morning.

Ramirez ordered security measures for all of the state's mayors, though he gave no details on what that involved.

Following Mota's killing, two suspects were killed in a clash with police and three others arrested. Officials said those taken into custody were a 32-year-old woman, an 18-year-old man and a minor. They gave few other details, though state Attorney General Javier Perez Duron said the suspects had been tied to other crimes.

Mota's center-left Democratic Revolution Party released a statement describing her as "a strong and brave woman who on taking office as mayor, declared that her fight against crime would be frontal and direct."