Concerned for his family's well-being after tornadoes struck near his Mississippi home, right-hander Roy Oswalt has left the Philadelphia Phillies, general manager Ruben Amaro Jr. said Wednesday.

Amaro said in a statement the recent tornado activity near Oswalt's home resulted in "several tragic deaths and significant devastation to the area."

"He has chosen to take time to make sure there wasn't significant damage to his home, but more importantly, to make certain that his wife and children are OK," Amaro said.

"It is almost a year to the day that his parents' home was destroyed by a tornado which has heightened his concern about the current situation."

Amaro said the Phillies hope Oswalt will be able to rejoin the team for his next start but the team will "take that day by day."

Oswalt threw three ineffective innings in a loss to the Arizona Diamondbacks Tuesday night and was long gone from the Philadelphia clubhouse when the game ended.