Two months after a letter-bomb explosion at a Winnipeg law office, reports of suspicious packages have been on the rise.

The latest incident happened at the Delta Hotel Thursday night, when security alerted officials of a suspicious package in a doorway. Hundreds of guests were evacuated and police closed a city block for more than five hours.

Police called in the bomb unit robot, and determined the item was not an explosive device.

"It does appear that it was either designed or it was created to appear like something of concern," said Const. Jason Michalyshen of the Winnipeg Police Service.

The city has been on high alert since a bomb exploded at a Winnipeg law office on July 3, seriously injuring lawyer, Maria Mitousis.

Since then, at least 23 other calls of suspicious packages have come in; tying up emergency crews for hours while they investigate.

Const. Michalyshen said the hours are not a concern for Winnipeg police.

"We are trained to deal with certain circumstances, if it's something that ends up being nothing in the end, so be it,” he said.

While an increased level of anxiety could contribute to the spike in reports of suspicious packages, therapist Carolyn Bergen, from Bergen and Associates Counselling, said often the level of danger appears disproportionate through media attention and word of mouth.

"I think it’s helpful for us to think about what is happening and what isn’t and we have to remind ourselves of the larger reality," said Bergen.

Police said they want people to keep calling in suspicious packages and any other concerning circumstances.

"I think that's a healthy way to use our anxiety, is to realize that sometimes there can be danger, and so when we notice a suspicious package, that we do something about it," said Bergen.

The Winnipeg Police Service said it's too soon to tell how the increase in calls will affect its budget, but added the cost is worth ensuring public safety.

The Police Association said these calls will likely have a significant impact on the budget; however, more importantly, the calls impact street resource. This means fewer officers are available to respond to other calls.

Anyone with information about suspicious package incidents is asked to call 204-986-6668 or Crime Stoppers at 204-786-8477.