Wiktionary
closed in
vb. (en-past of: close in)
WordNet
closed in
adj. blocked against entry; "a closed porch" [syn: closed, closed in(p)]
Usage examples of "closed in".
They wore handkerchiefs tied over the lower part of their faces, and they closed in on her, one on each side, very professionally, and he was too far away to hear whatever they said, but he saw them turn her into the alley as he started running soundlessly towards them.