Police say they have arrested a woman suspected of killing her 3-month old baby by slashing its throat in a cemetery chapel in a small central Spanish town.

A Civil Guard spokesman said the woman, a 37-year-old Spaniard, was arrested early Wednesday in the cemetery of Villa de Don Fadrique, a town of some 4,000 inhabitants located just southeast of Madrid.

The officer said a judge had a placed a secrecy order on the investigation and he could not give any further details.

The officer spoke on condition of anonymity in keeping with police regulations.