Silicon Valley Bank panic escalates: Customers line up around block outside Bay Area branch, as bank's collapse sparks fears they'll lose deposits over $250,000

Dozens of customers were seen lining up to withdraw whatever cash they had with Silicon Valley Bank on Friday after its sudden collapse.

In footage posted to Twitter, customers could be seen lining up from the entrance of one Bay Area branch in Menlo Park, California, all the way around the block, in the pouring rain.

There were similar scenes at other branches of the bank including in Manhattan where panic reached such an extent that building managers at SVB's office called the police after a group of disgruntled tech founders turned up on the doorstep in an attempt to withdraw their funds.