A middle-aged man identifying as woman is playing cricket against girls as young as 12, has injured a player and umpire

 Concerned parents in the U.K. have sent multiple letters to the cricket governing body over what is described as a "middle-aged transgender woman" participating in the sport against girls as young as 12.

Letters have been sent to the England and Wales Cricket Board (ECB), according to Fox News, expressing concern about the player, whose exact name and age have yet to be revealed. The parents say the person has an unfair advantage over the girls, having gone through puberty as a male.

Current rules under the ECB state that "trans women may compete in any female-only competition, league or match and should be accepted in the gender in which they present."

The player has reportedly caused injury to others, injuring an umpire and a girl who allegedly was unable to play for months.

One coach was quoted as saying the person "hits the ball harder than any other I have seen in the league."

Parental concerns range from the obvious dangers and irregularities of the situation to the discouragement of their daughters, who have just began playing a new sport.

"[It's] unacceptable, uncomfortable, and dangerous," said one parent, while another spoke of "real concerns" about a man sharing such spaces with teenage girls.

A parent of a 12-year-old said that the situation will push young girls to "give up on cricket because they become so frightened about having to face bowling and fielding of that strength and force."

"Many girls at this age are only just starting hard-ball cricket, and one incident is enough to turn them off the game," the parent added.

A spokesperson for the ECB told U.K. outlet the Telegraph that "transgender participation is a complex area."

"In recreational cricket, the eligibility of players is based on their own self-identified gender, with no medical requirements," they said.

"However, in light of guidance from the U.K. Sports Council’s Equality Group (SCEG), we are currently reviewing. We will continue to consult with Sport England and other independent experts and will communicate any changes once this work is complete," the ECB concluded.

At least six counties have reportedly met with the sport's governing body to ask it to address the situation, with the ECB now allegedly reviewing its policies regarding transgender players.