Travis Barker was reportedly admitted to hospital on Tuesday with suspected pancreatitis.
The 46-year-old - drummer with Blink-182 - was pictured being hospitalised in Los Angeles with a mystery condition, and his daughter Alabama later sparked concern when she asked fans for their prayers.
According to TMZ citing family sources, Barker is suffering from pancreatitis brought about by a recent colonoscopy.
The condition - an inflammation of the pancreas - is associated with severe pain in the stomach area, fever and bouts of vomiting.
Barker's current condition is unknown.