The rioters were demanding that the two accused men, who had fled their homes, be handed over to them.
The troops have cordoned off the Christian colony, blocking all entry and exit points with barbed wire, according to a Reuters TV cameraman.
Hundreds of Christians took refuge in a nearby district, a community leader Akmal Bhatti told Reuters, adding that four pastors had returned to the churches, which were still smouldering.
"It is the government's responsibility to compensate for the loss of property of the Christian community," he told reporters, adding the government was estimating the losses.
The United States was "deeply concerned that churches and homes were targeted," State Department Deputy Spokesperson Vedant Patel said on Wednesday.
Persons:
Christian, Akmal Bhatti, Bhatti, Mohsi Naqvi, Vedant Patel, Asif Shahzad, Raju Gopalakrishnan, Simon Cameron, Moore, Alexandra Hudson
Organizations:
Police, Reuters, Amnesty, State Department, Alexandra Hudson Our, Thomson
Locations:
LAHORE, Pakistan, Jaranwala, Faisalabad, United States, Islamabad