A Mexican man, who had claimed his two children had been abducted, has confessed that he killed them and hid their bodies in a city park, officials said.

Javier Covarrubias Gonzalez, 20, confessed to having killed his two children - Isia Liliana and Darien Isai - May 18, the date on which he reported their supposed kidnapping, officials at the capital district attorney's office said.