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Neighborhood residents walk by the bathroom that was destroyed in an early morning fire at Warm Spring Community Park off Fernald Avenue in the Warm Springs neighborhood of Fremont, Calif., on Monday, March 10, 2014. (Laura A. Oda/Bay Area News Group)

FREMONT -- Crews battled three suspicious fires early Monday within blocks of one another in the city's Warm Springs neighborhood, a fire spokeswoman said.

No one was injured in any of the single-alarm blazes, fire Capt. Diane Hendry said.

Firefighters were dispatched to the first blaze at 2:40 a.m. at a YMCA portable building on the campus of James Leitch Elementary School in the 47100 block of Fernald Avenue, Hendry said.

The building is used for a preschool program and the floor was badly damaged, officials said.

The next fire was reported at 3:05 a.m. near a baseball diamond at Warm Springs Park in the 47300 block of Fernald Avenue. A scoring booth caught fire and spread to a nearby tree. A Little League team uses the booth, which was significantly damaged, she said. A box of baseballs, some chairs and a table were destroyed.

The YMCA Y-Kids program portable on the James Leitch Elementary School campus is fenced off after a fire destroyed the flooring in the Warm Springs
The YMCA Y-Kids program portable on the James Leitch Elementary School campus is fenced off after a fire destroyed the flooring in the Warm Springs neighborhood of Fremont, Calif., on Monday, March 10, 2014. Fremont firefighters battled three separate single-alarm fires within blocks of each other within in the Warms Springs neighborhood. (Laura A. Oda/Bay Area News Group)

Little League President Greg Bogdanosf said the same booth caught fire this past winter. The cause of that blaze was not known but was deemed suspicious, he said.

No one was arrested in connection to that fire.

At 3:15 a.m. Monday, fire crews responded to a third blaze, this one in the women's bathroom at Warm Springs Park.

Firefighters had put the fires out within 15 to 20 minutes of arriving at each scene, Hendry said.

A cause of each fire was not immediately known, but Hendry said they appear to be suspicious.

Investigators from Alameda County fire and the Fremont Police Department remained on the scene hours later.

Anyone with information about the fires is asked to call 510-494-4200.

Staff photographer Laura Oda contributed to this report. Contact Natalie Neysa Alund at 510-293-2469. Follow her at Twitter.com/nataliealund.



The YMCA Y-Kids program portable on the James Leitch Elementary School campus is heavily damaged from an early morning fire forcing kids in the program to
The YMCA Y-Kids program portable on the James Leitch Elementary School campus is heavily damaged from an early morning fire forcing kids in the program to meet elsewhere in the Warm Springs neighborhood of Fremont, Calif., on Monday, March 10, 2014. Fremont firefighters battled three separate single-alarm fires within blocks of each other within in the Warms Springs neighborhood. (Laura A. Oda/Bay Area News Group)