[ti:] [ar:] [al:] [00:00.00]On the second day of a major offensive against the Taliban [00:03.62]in the southern Afghan province of Helmand, [00:05.71]NATO-led forces have killed 12 civilians by mistake. [00:09.57]A NATO statement said two rockets [00:12.01]veered off target. [00:13.49]Martin Patience reports. [00:14.82]According to military officials, [00:17.20]the two rockets were supposed to target insurgents [00:19.65]who they say were firing from a compound. [00:22.76]But the weapons missed their target by 300 meters, [00:25.90]killing the civilians in Marjah. [00:28.30]In a statement, NATO-led forces say [00:31.00]they've suspended the use of this particular rocket [00:33.54]while they investigate. [00:35.12]Despite the deaths, commanders say [00:37.61]the operation is proceeding as planned. [00:39.90]Progress, however, has been slow in Marjah town [00:43.11]as forces clear homemade bombs [00:45.14]and booby traps from roads and compounds.