2 more sharp spikes found in Green Lake

Divers found two more sharp spikes Thursday in Green Lake, bringing the total to 41 metal rods found this week at the south end of the lake.

Seattle Harbor Police plan to conduct another sweep of the lake for extra safety, city parks officials said Friday.

The first set of spikes, roughly 2 or 3 feet long, were found Sunday night by a man wading near the boating center. They were buried at the bottom of the lake with the sharp ends pointed up.

The only injury reported was by Pat Boltz, the Seattle resident who hurt his foot Sunday when he stepped on a spike.

Parks officials believe the spikes may have been there as long as two months because some of the rods were corroded.

"It's very strange," said city parks spokeswoman Dewey Potter. "There couldn't be any other reason [for the spikes] than to hurt people."

Swimming at the boating center is prohibited, but members of the parks staff have posted warnings for people to stay out of the water.