Authorities suspect that lightning may have sparked several house fires in southeast Wisconsin early Friday morning. The first was reported at about 2 a.m. on the 1700 block of Rockridge Way in Waukesha. Firefighters arrived on the scene to find people already outside and a small fire at the front of the home, on the second floor above the porch, a department spokesman said. The official said it looked like there were three strike points to the home, but only one resulted in fire. There were no injuries, but a preliminary estimate put the damage in the $5,000 to $7,000 range. A home near 62nd Street and Garfield Avenue in Wauwatosa was left with significant smoke and water damage after a fire that was reported about 2:30 a.m. Lightning is also suspected.