Coming up on @CBSThisMorning: The latest from New Zealand after two deadly mass shootings https://t.co/H1Tckta7hx

AHEAD: Former Texas Rep. @BetoORourke tells @CBSThisMorning about his plans for health care and why he says his limited government experience does not hurt his chances. https://t.co/nLRRly2XFf

New Zealand Police tweeted that they were searching a home in the city of Dunedin, about 220 miles south of Christchurch, that is "of interest in relation to the serious firearms incident" https://t.co/VGL0uzUb9U https://t.co/nXwVM8vqNG

North Korea says Kim Jong Un mulling resumption of nuclear and missile tests https://t.co/D3GSEzz7aj https://t.co/JyAXmqqSNc

"Someone had to do their due diligence on both locations...what was the best day of the week to get their maximum output," said CBS News law enforcement analyst Paul Viollis on New Zealand mosque shootings. https://t.co/roABvN4H5c https://t.co/Q1FqdNkPJ8

"Well, this is the last thing that Christchurch needs, it's the last thing that New Zealand needs and it's the last thing the world needs," Christchurch native and "Amazing Race" host @PhilKeoghan told CBSN. https://t.co/roABvN4H5c https://t.co/wL3ECAHtmP

New Zealand police commissioner says two possible IEDs were found inside a vehicle, adding that they've disabled one and are in the process of disabling another https://t.co/roABvN4H5c https://t.co/3sMfBYv32b

"At this point we are not actively looking for any identified persons," New Zealand police commissioner says https://t.co/roABvN4H5c https://t.co/LQisXRMJ7v

New Zealand police commissioner Mike Bush says "no agency had any information" on the suspects on custody https://t.co/roABvN4H5c https://t.co/vWnZBFskXQ

“I don’t know if he’s still alive or dead,” says a New Zealand mother whose son was worshiping at one of the mosques that was attacked in the shootings. https://t.co/9MGOv3E04n https://t.co/GnCvusBiID

New Zealand police commissioner says 49 people are now dead after shootings at two mosques in the country. https://t.co/3j6nibpVT7 https://t.co/HsoGYRHgps

HAPPENING NOW: New Zealand police commissioner Mike Bush provides update on shootings at two mosques in the country. https://t.co/3j6nibpVT7 https://t.co/csNstpi2j9

New Zealand shootings: The national security threat level in New Zealand has increased from low to high https://t.co/umBUczhk0B https://t.co/dQN34bvAO3

New Zealand shootings: The gunman referenced the 2nd Amendment in his manifesto https://t.co/ePpwFpugyQ https://t.co/q2szLfHzxW

“I don’t know if he’s still alive or dead,” says a New Zealand mother whose son was worshiping at one of the mosques that was attacked in the shootings. https://t.co/3j6nibpVT7 https://t.co/FVuy40wY4q

HAPPENING NOW: CBS News Special Report on shootings at two New Zealand mosques, that left 40 dead, dozens more injured. https://t.co/3j6nibpVT7 https://t.co/l4BzhpDCS5

RT @CBSThisMorning: NEW ZEALAND MOSQUE SHOOTINGS: WHAT WE KNOW

 40 people killed, dozens injured
 4 people in custody
 PM describes as a terrorist attack 
 Man claiming responsibility wrote 74-page manifesto expressing concern about "white genocide"

The 4 suspects in custody were not on any security watch lists, says Prime Minister Jacinda Ardern of the suspects in the two mosque shootings in New Zealand. https://t.co/3j6nibpVT7 https://t.co/XItZfa0k8n

Prime Minister Jacinda Ardern: “We represent diversity, kindness, compassion, a home for those who share our values, refuge for those who need it and those values, I can assure you, will not and cannot be shaken by this attack.“ https://t.co/3j6nibpVT7 https://t.co/dZ9XGkdvlX

“These are people who I would describe as having extremist views, that have absolutely no place in New Zealand and, in fact, have no place in the world,” says Prime Minister Jacinda Ardern of the suspects in the shootings of two mosques in the country. https://t.co/3j6nibpVT7 https://t.co/A0hHl47uDc