the first explosion , set off by a device planted in a mailbox , went off around 8:20 a.m. just as congregants at calvary baptist church in southern las cruces were beginning to gather for the morning ’s services . aaliyah doninguez , 11 , holds a sign advising parishioners in las cruces , new mexico , that mass at holy cross catholic church mass was canceled on sunday . robin zielinski ap a mailbox was blasted at calvary baptist church in las cruces , about 50 miles from the mexico border , around 8 a.m. local time , the police statement said . the service at holy cross had started , and worshippers were no injuries : devices placed just outside churches in trash can , mail box while waiting in a staging area , holy cross catholic church pastor john anderson tries to get in touch with other local churches to warn them of the two explosions that occurred sunday morning and to be vigilant . las cruces > > explosions rattled two churches in a new mexico town sunday morning , police said . robin zielinski — sun - news holy cross catholic church pastoral associate elizabeth behnke informs parishioners aaliyah doninguez , 11 , advises parishioners that holy cross catholic church mass is canceled in las cruces , n.m. ( robin zielinski las cruces sun - news via ap ) three miles and only 20 minutes apart , dual explosions rocked two churches in las cruces , n.m. , sunday morning , injuring none but leaving both congregations shaken . ( robin zielinski sun - news ) see photos from the scene at holy cross catholic church and calvary baptist church . less than half - hour later , police were called to holy cross catholic church , about three miles away , where an explosive device had gone off in a trash can near the entrance of the church , according to police . the explosion , but services for the 8 a.m. mass were taking place .