Donald Trump says he wants to "suspend immigration from areas of the world where there is a proven history of terrorism."It wasn't immediately clear whether Trump was proposing a change from his long-standing proposal to temporarily bar foreign Muslims entering the U.S.The presumptive GOP presidential nominee also called on Muslims in the U.S. to work with law enforcement on finding potential attackers.He made the proposal Monday in Manchester, New Hampshire, a day after the worst mass shooting in U.S. history in Orlando.The presumptive Republican nominee called for an overhaul of the nation's immigration system and said that "we have to control our borders now - not later, now."Trump also attacked Hilary Clinton by name in his speech. Clinton did not mention Trump by name in her speech an hour earlier.Trump repeatedly criticized Clinton's immigration plan, her attempts to tighten the nation's gun control laws and for not using the phrase "radical Islamic terrorism" when describing recent attackers.He also said national intelligence officers are "not being allowed to do their jobs" due to restrictions imposed upon them by President Barack Obama's administration.Trump postponed a rally that had been planned for Monday evening in Portsmouth."Due to the horrific tragedy that has just taken place in Orlando, Florida, Mr. Trump is postponing the rally scheduled to take place tomorrow in Portsmouth, New Hampshire," his campaign said late Sunday. "We will make it up in the near future."Forty-nine people were killed and 53 wounded in the mass shooting.Get the WMTW App9234908

Donald Trump says he wants to "suspend immigration from areas of the world where there is a proven history of terrorism."

It wasn't immediately clear whether Trump was proposing a change from his long-standing proposal to temporarily bar foreign Muslims entering the U.S.

The presumptive GOP presidential nominee also called on Muslims in the U.S. to work with law enforcement on finding potential attackers.

He made the proposal Monday in Manchester, New Hampshire, a day after the worst mass shooting in U.S. history in Orlando.

The presumptive Republican nominee called for an overhaul of the nation's immigration system and said that "we have to control our borders now - not later, now."

Trump also attacked Hilary Clinton by name in his speech. Clinton did not mention Trump by name in her speech an hour earlier.

Trump repeatedly criticized Clinton's immigration plan, her attempts to tighten the nation's gun control laws and for not using the phrase "radical Islamic terrorism" when describing recent attackers.

He also said national intelligence officers are "not being allowed to do their jobs" due to restrictions imposed upon them by President Barack Obama's administration.

Trump postponed a rally that had been planned for Monday evening in Portsmouth.

"Due to the horrific tragedy that has just taken place in Orlando, Florida, Mr. Trump is postponing the rally scheduled to take place tomorrow in Portsmouth, New Hampshire," his campaign said late Sunday. "We will make it up in the near future."

Forty-nine people were killed and 53 wounded in the mass shooting.