This post has been updated.

A subcommittee of the House committee chaired by Rep. Darrell Issa (R-Calif.) held a hearing Tuesday morning concerning possible public health and public safety issues at Occupy D.C.’s McPherson Square encampment.

A rat trap sits between a tree and protestor's tent in McPherson Square Park on Friday. Mayor Vincent Gray has called on the National Park Service to remove Occupy D.C. protesters from McPherson Square, citing rat infestation and other health issues. (Cliff Owen/AP)

Read tweets from the hearing from The Post’s Annie Gowen and Tim Craig after the jump:

MORE on Occupy D.C.:

Lawmakers to ask Park Service why Occupy DC has been allowed to remain in McPherson Square

Occupy D.C. has a plan: To stay in the public’s face

Postcards from Occupy D.C.