The BBC and local press have been reporting this:
US F-15s and RAF tanker in near-miss over north Norfolk coast - BBC News
The full report is here:
http://www.airproxboard.org.uk/uploa...%202017002.pdf
However, another incident is also rather alarming and can be seen here:
http://www.airproxboard.org.uk/uploa...%202017026.pdf
The second report states:
Members wondered whether recent flying rates were such that tanker crews were less often exposed to multiple concurrent receivers than was historically the case, and noted that other complex aviation tasks were often subject either to recency and currency requirements or had a limit to the maximum number of participants to prevent operator overload.
That must be rather worrying, surely?