New Mexico Gov. Martinez: 'Coward' set off 2 church blasts

1Aaliyah Doninguez, 11, stands on N. Alameda Boulevard on Sunday, Aug. 2, 2015, in Las Cruces, N.M., advising parishioners that Holy Cross Catholic Church mass is canceled.
2Churchgoers were left shaken during Sunday morning services after authorities say explosions occurred less than 30 minutes apart outside two Las Cruces churches.
3While 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 and to be vigilant, Sunday, Aug. 2, 2015, in Las Cruces, N.M. Churchgoers were left shaken during Sunday morning services after authorities say explosions occurred less than 30 minutes apart outside two Las Cruces churches.
4Holy Cross Catholic church pastoral associate Elizabeth Behnke informs parishioners of ride arrangements and that their cars must be left at the church until the parking lot is searched, on Sunday, Aug. 2, 2015 in Las Cruces, N.M. Churchgoers were left shaken during Sunday morning services after authorities say explosions occurred less than 30 minutes apart outside two Las Cruces churches.
5Las Cruces police officer Joseph Campa talks to Holy Cross Catholic Church parishioners on Sunday, Aug. 2, 2015 in Las Cruces, N.M., after an explosion occurred at the entrance of the church during mass.
6Holy Cross Catholic Church parishioners gather on the corner in Las Cruces, N.M., on Sunday, Aug. 2, 2015 after a explosion occurred at the outside entrance of the church during mass.
7LAS CRUCES, N.M. (AP)?
8New Mexico Gov. Susana Martinez is promising that the "coward" who set off explosions outside two Las Cruces churches will be caught.
9The small blasts just 20 minutes and a few miles apart shocked congregants Sunday morning at the churches in southern New Mexico.
10There were no injuries or deaths from the blasts outside Calvary Baptist and Holy Cross Roman Catholic in Las Cruces, Las Cruces police spokesman Danny Trujillo said.
11Each building sustained minor damage.
12Authorities are working to determine who planted the explosives and have not said if more than one person is being sought.
13They are also trying to determine what materials were used and whether the blasts were related.
14"It doesn't appear to be coincidental because of the timing, but you never know," Trujillo told The Associated Press.
15Several agencies including the FBI, the Bureau of Alcohol, Tobacco, Firearms and Explosives and New Mexico State Police are assisting with the investigation.
16Martinez told reporters late Sunday that Las Cruces residents should continue to attend houses of worship.
17The first explosive device went off at about 8:20 a.m. in a mailbox on a wall near the administrative entrance to Calvary Baptist.
18According to police, several worshippers were inside the church at the time, but services hadn't started.
19According to churchgoers, the blast shook the building and there was debris around the damaged mailbox.
20Las Cruces police Sgt. Robert Gutierrez described seeing "just a lot of paper shreds."
21The next blast came from a trash can outside Holy Cross Catholic at about 8:40 a.m. as Monsignor John Anderson was helping pass Communion.
22"I was right in the middle of saying the words 'take and eat, this is my body,' and there was a pow! I mean, I knew it had to be more than a gunshot," Anderson told the Las Cruces Sun-News newspaper (http://bit.ly/1ME7PEp).
23"I didn't know if it was a shotgun blast, I didn't know what. But it was very loud, and I just kept on saying the words."
24Ann Marie Sullivan, a college student attending Mass, said it "sounded like something had fallen off and shattered the glass in the back."
25The trash can was near a glass entryway, which was damaged.
26Police arrived and evacuated the church and blocked off surrounding streets.
27Bomb-sniffing dogs were brought in to search the building.
28Services were canceled for the rest of the day at both churches, which are less than 4 miles apart.
29Trujillo said he didn't know of any recent threats involving either church.
30Other churches in the city have contacted police about what, if anything, they should do.
31Trujillo said police are advising them to look out for anything suspicious, but don't inspect anything themselves.
32"Don't go poking around in trash cans or mailboxes," Trujillo said, according to the Sun-News.
33"If you have any suspicion of anything that's out of the ordinary, please call to police and leave it up to the officers to look it over."