Apple has warned that Coronavirus outbreak will affect its business in the January-March quarter as worldwide iPhone supply will be temporarily constrained.

In an investor update late Monday, the tech giant said it no longer expects to meet the revenue guidance it provided last month for the upcoming quarter.

"Work is starting to resume around the country, but we are experiencing a slower return to normal conditions than we had anticipated. As a result, we do not expect to meet the revenue guidance we provided for the March quarter due to two main factors," the company said in a statement.

The first is that worldwide iPhone supply will be temporarily constrained.

"While our iPhone manufacturing partner sites are located outside the Hubei province -- and while all of these facilities have reopened -- they are ramping up more slowly than we had anticipated," said the company.

The second is that demand for its products within China has been affected.

"All of our stores in China and many of our partner stores have been closed,' it added.

The tech giant closed all 42 retail stores in the country from February 1 based on the latest advice from leading health experts.

Additionally, stores that are open have been operating at reduced hours and with very low customer traffic.

"We are gradually reopening our retail stores and will continue to do so as steadily and safely as we can. Our corporate offices and contact centers in China are open, and our online stores have remained open throughout," Apple informed.

The company said its quarterly guidance issued on January 28, 2020 reflected the best information available at the time as well as its best estimates about the pace of return to work following the end of the extended Chinese New Year holiday on February 10.

"These iPhone supply shortages will temporarily affect revenues worldwide," the company noted.

Chinese health authorities on Tuesday said it received reports of 1,886 new confirmed cases of novel coronavirus infection and 98 deaths on Monday. Among the deaths, 93 were in Hubei Province, three in Henan, and one in Hebei and Hunan respectively. Over 1,700 people have been killed to date.

According to Apple, outside of China, customer demand across its product and service categories has been strong to date.

"The situation is evolving, and we will provide more information during our next earnings call in April. Apple is fundamentally strong, and this disruption to our business is only temporary," said the company.

Apple supplier Foxconn would keep its factories shut for some more time in the wake of the deadly coronavirus outbreak in the country, according to reports.