The arrests follow an A400M Atlas aircraft being stopped on the runway at Gibraltar last month so a British serviceman could be questioned.
Reports also suggest that police wanted to examine computer equipment belonging to him.
In a statement the Royal Gibraltar Police said:
“Officers of the Royal Gibraltar Police have today, Wednesday the 1st of March, arrested three senior military officials and executed a number of search warrants at various MOD establishments.
They have been arrested on suspicion of attempting to pervert the course of justice and for conspiring to pervert the course of justice.
The investigation concerns the events on the runway on Wednesday the 8th February 2017. No further comment will be made at this time.”
Following the incident last month an MoD spokesperson said:
“We can confirm that an incident occurred at the airfield that necessitated an unscheduled closure of Winston Churchill Avenue in Gibraltar.
As this incident has occurred as a result of an on-going police investigation we are unable to comment further at this time.
Despite the unscheduled closure, incoming commercial flights were unaffected but a small number of departures suffered minor delays.”
More on this as it develops.