DES MOINES, Iowa (AP) -- Leaders of both parties say they want a review of mail-handling and other security procedures at the Statehouse after a scare this week in which white powder poured out of an envelope mailed to a legislator.

Lawmakers called for the review Thursday, two days after Rep. Ako Abdul-Samad opened the envelope, which also contained a threatening letter.

Also Thursday, Des Moines Fire Department spokesman Brian O'Keefe told KCCI-TV that the powder was calcium carbonate, a common antacid used to treat indigestion.

House Speaker Kraig Paulsen says lawmakers have never encountered such an incident and should develop procedures in case something similar happens again.

Senate Majority Leader Michael Gronstal says security officials need to be brought into such planning.

The powder prompted a four-hour lockdown of the Statehouse.