NEW YORK (CNNMoney.com) -- Chase's online banking website has been offline for most of Tuesday, a prolonged outage the company blamed on unspecified "technical issues."
The service went down sometime Monday night, Chase spokesman Tom Kelly said. "We're working on it, it's a top priority," he added.
Chase has more than 16.6 million active online customers.
In the meantime, Chase is encouraging those customers to conduct their business at local bank branches and ATMs, or to use the company's phone service, which remains unaffected by the crash.
Jamie Dimon, the company's chief executive, apologized for the disruption at a banking conference in New York. Ironically, part of his presentation touted Chase's fast growth in its online banking business, which has expanded its customer base by more than 40% annually for the past four years.
Some of those customers swarmed Twitter to vent their frustrations with Chase's outage.
"Chase, get your f'n website back online. us' 2nd largest bank should be able 2 afford competent tech support," one user said on the micro blogging Web site.
Another disgruntled customer said simply: "I hate you #Chase bank."
Chase (JPM, Fortune 500) bank, the commercial division of JPMorgan Chase, has assets of $2 trillion and operations in more than 60 countries. The New York-based bank operates more than 5,100 commercial branches across the United States.
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