The couple, who have been dating since 2015, met at a Victoria's Secret Fashion Show after party.
In a statement on Twitter, Zayn described their relationship as "meaningful and loving" and revealed their split was a "difficult decision", while Gigi said she would be "forever grateful for the love, time and and life lessons" they shared.
Malik called Hadid an incredible soul and explained that he was grateful for everyone that is respecting their decision.
Ex-Pat Butler to join Titans for $61M
Butler is coming off a season in which he finished with two interceptions, three forced fumbles, a sack and 60 combined tackles. He started 15 of 16 games in New England, but did not play a single down in the team's Super Bowl loss to the Eagles.
"I'm grateful to all of our fans for respecting this hard decision and our privacy at this time" Malik said. "Love this man more than I could ever put into words, & am inspired by his drive to be and do better every day", she wrote. "We love you all".
The news may be as the biggest break up in social-media history, if you ask your teenagers.
Back in January, Gigi posted this absolutely adorable post wishing Zayn a Happy Birthday, and looking at it now, I'm getting damn teary! As for the future, whatever's meant to be will always be. xG'.
"The reality is that they've grown apart, having been together for a long time".
Regeneron and Sanofi's Praluent successful in large-scale cardiovascular outcomes study
This appears to be the main driver behind their plan to discount the medication for high-risk patients. Statins are the main medicines for this, but some people can't tolerate or get enough help from them.
"They have insane work schedules that would put pressure on any relationship".
The source continued: 'This is definitely the end for now, but this isn't a bitter split and they both have respect for each other.
"When life throws you lemons, catch em so you don't get hit in the f-king face", Malik captioned the photo.
Going their separate ways: Yolanda's daughter Gigi Hadid has split with former One Direction after more than two years together.
SBI reduces minimum balance charges to Rs 15
Failing to do so a penalty of Rs 50 (urban), Rs 40 (semi-urban), Rs 30 (rural) was charged on the bank account holder. RBI guidelines mandate that charges for non-maintenance of minimum balance in savings bank accounts be "reasonable".