- 4 ▁pl astic ▁explos ives , ▁ 1 2 3 ▁R PG - 7 ▁and ▁ 1 8 0 ▁M 7 2 ▁LA W ▁ro cket ▁launch ers ▁as ▁well ▁as ▁ 3 , 3 8 3 ▁M - 1 6 ▁rif les . ▁On ▁ 7 ▁September ▁ 1 9 8 6 , ▁about ▁ 3 0 ▁F PM R ▁gu err illas ▁attempted ▁to ▁kill ▁P ino ch et . ▁P ino ch et ▁narrow ly ▁escaped ▁the ▁assass ination ▁attempt ▁on ▁his ▁motor cade , ▁but ▁five ▁army ▁corpor als ▁were ▁killed ▁and ▁eleven ▁soldiers ▁and ▁car ab iner os ▁were ▁wounded ▁in ▁the ▁amb ush . ▁This ▁failed ▁operation ▁led ▁to ▁an ▁internal ▁crisis ▁of ▁the ▁group , ▁many ▁of ▁its ▁leading ▁members ▁being ▁arrested ▁by ▁the ▁security ▁forces . ▁On ▁ 2 8 ▁October ▁ 1 9 8 6 , ▁M IR ▁gu err illas ▁operating ▁in ▁Lim ache ▁shot ▁and ▁wounded ▁five ▁polic emen . ▁One ▁car ab in ero ▁N CO ▁( 3 6 - year - old ▁Luis ▁S ere y ▁A bar ca ) ▁later ▁died ▁of ▁his ▁w ounds . ▁On ▁ 5 ▁November ▁ 1 9 8 6 , ▁gu err illas ▁threw ▁an ▁inc endi ary ▁bomb ▁into ▁a ▁bus ▁in ▁Vi ña ▁del ▁Mar , ▁seriously ▁inj uring ▁three ▁women ▁( R osa ▁River a ▁F ier ro , ▁Son ia ▁Ram í rez ▁Sal inas ▁and ▁Mart a ▁Sep úl ved a ▁Con tr eras ). ▁ 3