Struggling BlackBerry maker Research in Motion has warned it will have an operating loss in the current March-June quarter and said there will be significant layoffs this year. RIM said it has hired JP Morgan and RBC Capital Markets to help the company evaluate various strategies, including opportunities to partner with other companies and license software as well as other alternatives. Ontario-based RIM, a pioneer in the smartphone market, made no mention of a sale of the company but new chief executive Thorsten Heins did not rule it out after RIM\'s last earnings were released in late March. RIM\'s stock was halted in after-hours trading on Tuesday. When trading resumed shares fell more than 10%. The once-iconic BlackBerry company is facing the most difficult period in its history. RIM is working on the launch of a new software operating system just as North Americans are abandoning their BlackBerries for Apple\'s iPhone and smartphones that run Google\'s Android software. RIM\'s US share of smartphones dropped from 44% in 2009 to 10% in 2011, according to market researcher NPD Group. The company still has 78 million active subscribers across the globe, but Apple and Android phone makers such as Samsung and HTC are taking market share. Mr Heins said: \"The on-going competitive environment is impacting our business in the form of lower volumes and highly competitive pricing dynamics in the marketplace, and we expect our (current quarter\'s) results to reflect this, and likely result in an operating loss for the quarter.\" Mr Heins, formerly a little-known chief operating officer at RIM, took over in January after RIM founder Mike Lazaridis and long-time executive Jim Balsillie stepped down as co-chief executives after the company lost tens of billions in market value. RIM said there will be staff reductions among its 16,500 employees and significant spending cuts as the company looks to save a billion US dollars - even as it transitions to its new BlackBerry 10 software platform expected out later this year. RIM reiterated that its financial performance will continue to be challenging for the next few quarters. RIM is following the same trajectory as struggling Finnish handset makers Nokia and California-based Palm, and there is fear that RIM could go the way of former Canadian tech giant Nortel, which declared bankruptcy in 2009 and was picked over for its patents.