ight ▁soldiers ▁were ▁killed ▁in ▁cl ash es , ▁and ▁another ▁ 1 5 ▁were ▁wounded . ▁A ▁total ▁of ▁ 1 3 9 ▁were ▁arrested . ▁ ▁In ▁total , ▁the ▁ri ots ▁and ▁fires ▁destroyed ▁ 3 9 ▁buildings , ▁ 1 0 4 ▁engines , ▁ 4 6 – 6 6 ▁passenger ▁cars , ▁and ▁ 1 , 2 0 0 – 1 , 3 8 3 ▁fre ight ▁cars , ▁and ▁overall ▁almost ▁ ▁of ▁the ▁city ▁was ▁burn ed . ▁The ▁Pennsylvania ▁Rail road ▁claimed ▁losses ▁of ▁more ▁than ▁$ 4 ▁million ▁in ▁Pitts burgh . ▁The ▁next ▁year ▁the ▁state ▁legisl ature ▁established ▁an ▁investig ative ▁committee . ▁According ▁to ▁its ▁ 1 8 7 8 ▁report , ▁the ▁rail road ▁claimed ▁$ 2 ▁million ▁in ▁losses ▁exclusive ▁of ▁fre ight , ▁and ▁the ▁committee ▁estimated ▁a ▁total ▁of ▁$ 5 ▁million ▁in ▁loss ▁and ▁damage ▁to ▁the ▁city . ▁One ▁other ▁source ▁estimated ▁the ▁damage ▁as ▁being ▁between ▁four ▁and ▁ten ▁million ▁dollars . ▁ ▁Rail road ▁t ies ▁were ▁dam aged ▁and ▁tw isted ▁by ▁fire , ▁and ▁could ▁not ▁be ▁rep a ired ▁for ▁a ▁week . ▁During ▁that ▁time , ▁no ▁trains ▁moved ▁through ▁the ▁city . ▁In ▁total , ▁authorities ▁were ▁forced ▁to ▁mobil ize ▁ 3 , 0 0 0 ▁federal ▁troops , ▁and ▁thousands ▁more ▁in ▁state ▁national ▁guard ▁and ▁local ▁milit ia ▁to ▁Pitts burgh ▁in ▁order ▁to ▁restore ▁and ▁en force ▁the ▁peace . ▁ ▁Ex am ination