A TRACON controller without an assist reported an unidentified VFR aircraft climbed into traffic on ...

Attributes
ACN	1611067
Time
Date	201901
Local Time Of Day	1801-2400
Place
Locale Reference	ZZZ.TRACON
State Reference	US
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Make Model Name	Gulfstream IV / G350 / G450
Operating Under FAR Part	Part 91
Flight Phase	Initial Approach
Route In Use	Vectors Visual Approach
Flight Plan	IFR
Aircraft 2
Make Model Name	Any Unknown or Unlisted Aircraft Manufacturer
Operating Under FAR Part	Part 91
Flight Phase	Climb
Route In Use	None
Flight Plan	VFR
Person 1
Function	Approach
Qualification	Air Traffic Control Fully Certified
Experience	Air Traffic Control Time Certified In Pos 1 (yrs) 8
Events
Anomaly	ATC Issue All Types Airspace Violation All Types Conflict Airborne Conflict Deviation - Procedural Clearance Deviation - Track / Heading All Types Inflight Event / Encounter CFTT / CFIT

Narrative:

I had aircraft X going into ZZZ and there was a VFR aircraft that turned and climbed into aircraft X. I cancelled the approach clearance and climbed aircraft X to 4;500 ft. Aircraft X advised climbing for an RA. I looked around to advise the person in charge of the area and could not see anyone. As I continued to work with aircraft not checking in or responding to correct call signs; I turned and asked for help and again did not see anyone in the area. I regained control but several aircraft were high on the approaches. I think everyone was separated by the standard separation but I honestly don't know. I had aircraft Y going to ZZZ1 who said they wanted the GPS 12 approach; so I cleared them direct zzzzz an IAF or if for the approach and they turned south into a 5600 MVA (minimum vectoring altitude). I issued a low altitude alert and climb to 5;600 ft. They didn't comply; I issued a heading north and a climb. They were not responding which increased my workload even more. Based on their position; I might [have] even had an airspace violation. Again; no one seemed available to help. The airspace could be changed to help prevent VFR aircraft from being able to climb to the approach altitudes of ZZZ or [nearby] airports. Mainly I needed assistance and was not able to obtain any.

Original NASA ASRS Text

Title: A TRACON Controller without an Assist reported an unidentified VFR aircraft climbed into traffic on a final approach course and another aircraft deviated from their course into a higher Minimum Vectoring Altitude Area.

Narrative: I had Aircraft X going into ZZZ and there was a VFR aircraft that turned and climbed into Aircraft X. I cancelled the approach clearance and climbed Aircraft X to 4;500 ft. Aircraft X advised climbing for an RA. I looked around to advise the person in charge of the area and could not see anyone. As I continued to work with aircraft not checking in or responding to correct call signs; I turned and asked for help and again did not see anyone in the area. I regained control but several aircraft were high on the approaches. I think everyone was separated by the standard separation but I honestly don't know. I had Aircraft Y going to ZZZ1 who said they wanted the GPS 12 Approach; so I cleared them direct ZZZZZ an IAF or IF for the approach and they turned south into a 5600 MVA (Minimum Vectoring Altitude). I issued a Low Altitude Alert and Climb to 5;600 ft. They didn't comply; I issued a heading north and a climb. They were not responding which increased my workload even more. Based on their position; I might [have] even had an airspace violation. Again; no one seemed available to help. The airspace could be changed to help prevent VFR aircraft from being able to climb to the approach altitudes of ZZZ or [nearby] airports. Mainly I needed assistance and was not able to obtain any.

Data retrieved from NASA's ASRS site and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.

A TRACON controller without an assist reported an unidentified VFR aircraft climbed into traffic on a final approach course and another aircraft deviated from their course into a higher minimum vectoring altitude area.