Story highlights President George H.W. Bush is improving, spokesman said

Bush, 92, was admitted last week for pneumonia-related issues

Washington (CNN) Former President George H.W. Bush is improving and may return home from the hospital as soon as this weekend, a spokesman for the 41st President said.

"President Bush continues to improve as he recovers from pneumonia," spokesman Jim McGrath said in a statement. "Despite a lingering cough, his lungs are clearing up and he is working with physical therapists to build strength."

"At his current rate of recovery, President Bush's physicians believe he could possibly go home over the weekend," he added.

Bush, 92, sought care at the intensive care unit of Houston Methodist Hospital on January 14 for "an acute respiratory problem stemming from pneumonia. Doctors then performed a procedure to protect and clear his airway that required sedation," McGrath said in an earlier statement.

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