US weekly jobless claims unexpectedly increased last week to 419,000

Applications for U.S. state unemployment insurance rose unexpectedly last week by the most since late March, underscoring week-to-week volatility in an otherwise improving labor market.

Initial jobless claims in regular state programs totaled 419,000 in the week ended July 17, up 51,000 from the prior week, Labor Department data showed Thursday. The median estimate in a Bloomberg survey of economists called for 350,000 new applications.

Continuing claims for state benefits fell to 3.24 million in the week ended July 10.

The unexpected jump in initial jobless claims reflected outsize increases in four states -- Michigan, Texas,