MEXICO CITY, May 8 (Xinhua) -- Mexican government on Monday expressed its concern over a sactuary law just passed in U.S. state of Texas as it may be abused by overzealous anti-immigration authorities.

In a statement, the foreign ministry said it was concerned by Senate Bill 4 (SB4) which was signed by Texas Governor Greg Abbott Sunday night, "because it contains elements that could be damaging to the rights of Mexicans or people of Mexican origin living in the United State."

SB4, also known as the "anti-sanctuary city law" and to take effect on Sept. 1, allows police officers to question anyone they detain about their immigration status, something they could only do in the past after arresting someone suspected of a crime.

SB4 generally grants authorities more power to move against undocumented migrants and punish those who offer them sanctuary.

"These types of measures further criminalize the immigration phenomenon, promote racism and reduce collaboration between migrant communities and local authorities," the Mexican foreign ministry added.