[by:www.51voa.com] [00:00.00]¸ü¶àÌýÁ¦Çë·ÃÎÊ51VOA.COM [00:00.24]Police say at least 14 people have been killed [00:04.16]in a mass shooting in Southern California. [00:07.68]And another 14 are wounded. [00:11.32]The attack happened in San Bernardino [00:14.20]at a training center for disabled people. [00:18.12]San Bernardino police chief Jarrod Burguan [00:21.72]spoke to reporters after the incident. [00:24.60]He said it is believed that three gunmen were involved. [00:29.46]He said the shooters apparently fled the area. [00:33.18]The numbers of casualities may change [00:36.56]and it is not known if the shooting was a terrorist attack. [00:40.96]Burguan said there was a massive response to the shooting. [00:45.20]He said several local and state security forces took part. [00:50.44]Earlier reports said the shooters may have been dressed in military clothing. [00:55.96]A police spokeswoman told the Los Angeles Times [00:59.44]that the attackers were heavily armed [01:02.20]and possibly wore body armor. [01:05.56]A bomb squad reportedly was deployed [01:08.40]to try to disarm a possible explosive device. [01:13.00]This latest shooting comes less than a week [01:16.00]after a gunman killed three people [01:18.60]and wounded nine in an attack [01:21.08]at a family planning and health clinic [01:23.48]in Colorado Springs, Colorado. [01:26.72]In October, a gunman killed nine people at a college in Oregon. [01:32.08]In June, a gunman killed nine people at a church in South Carolina. [01:37.23]I'm Caty Weaver.