TORONTO -- After a delayed launch of the new BlackBerry Z10 in the United States, the touchscreen smartphone now is being sold by major wireless carrier AT&T.

Today's U.S. launch comes about six weeks after the new BlackBerry went on sale in Canada and the United Kingdom.

A keyboard version of the new BlackBerry Z10 isn't expected out in the U.S. for another several months.

The Waterloo, Ont.,-based smartphone maker has lost significant share of the tech-savvy U.S. market where consumers have preferred to buy Apple's iPhone and Android smartphones.

Shares in BlackBerry were up 13 cents to $16.65 in late morning trading on the Toronto Stock Exchange.