Detained immigrants are being held for extended periods without access to their lawyers. This lack of contact prevents them from filing for release. The detention is taking place at SFO, where immigrants are unable to reach their attorneys for days.

Further details about the situation are available from the source. The information provided does not specify the cause of the detention or the number of immigrants affected.

It is known that the detention at SFO is causing difficulties for immigrants who are unable to communicate with their lawyers, hindering their ability to seek release.