Earlier in the day, the Russian Foreign Ministry expressed condolences to the friends and families of the victims in a statement on the ministry's official website.
On Friday, local media reported citing the Egyptian health ministry that at least 36 people were killed and over 120 were injured, Sputnik reported.
Other reports also suggested that some 179 people were injured.
One of the trains was traveling from Cairo, and the other from Port Said. As a result of the collision, several train cars derailed and overturned.
According to local authorities, a mistake by the operator of a semaphore caused the accident. Egypt's Prosecutor-General Nabil Sadiq reportedly ordered an urgent investigation into the collision.